Motondoso: Suck it up

The dynamics of waves aren’t so hard to understand — anybody who’s ever gone to the beach remembers the thump of the wave that has just arrived.   (Am I the only person who’s ever noticed how much that sound resembles the slamming of the car doors as your  family arrives for a visit?).

We don’t really notice what the thump does to the sand because an infinite series of  them has  already created the sand.   It’s not a bad idea, though,  to recall that the sand was once a hefty piece of mountain.

What isn’t so obvious, and maybe is even less obviously disturbing, is the hissing sound the wave makes as it departs.   It is caused by a force called “risucchio,” (ree-SOOK-yo)  which literally means “re-sucking,”  though I suppose “undertow” is close enough for Anglophones.   And it’s the force that tears asunder what was once clearly put together by God, man, or whatever’s in between.

This is the ferryboat which carries wheeled vehicles to and from the Lido.  When it approaches the landing stage, the captain throws the engines into reverse to slow and stop the boat, then keeps the engines grinding in reverse in order to maintain tension on the lines.  This is considered necessary for safety.  The result is an impressive vortex of spinning water..
This is the ferryboat which carries wheeled vehicles to and from the Lido. When it approaches the landing stage, the captain throws the engines into reverse to slow and stop the boat, then keeps the engines grinding in reverse in order to maintain tension on the lines. This is considered necessary for safety. The result is an impressive vortex of spinning water..
Cruise ships create the same effect when they are maneuvering out of their berth.  Here, the TK Princess is on its way.  In high season there can be as many as seven cruise ships in the Maritime Zone; although they don't create waves, the force of their engines here has gouged a crater TK feet deep.
Cruise ships create the same effect when they are maneuvering out of their berth. Here, the "Ruby Princess" is on its way out. In high season there can be as many as seven cruise ships in the Maritime Zone.

Even natural waves caused by the wind, aided and abetted by the retreating tide, will do some of this work of demolition.   But then there are the big public boats — and I’m thinking specifically of waterbuses.   They come in several versions here, but the highest number are the vaporettos.

A standard vaporetto.
A standard vaporetto.

The vaporetto is a specific type of boat, and the public-transport company, which goes by its acronym ACTV, operates 52 of them.   Sometimes called “battello,” the vaporetto  has a regularly scheduled cousin correctly called a “motoscafo,” though it gets called “vaporetto” too for convenience.   It sits lower in the water and carries fewer people, though you might not believe it if you try to get on one at rush hour.

A motoscafo.
A motoscafo.

At this moment, the ACTV website informs us that the company operates “about 152” waterborne vehicles.   (“About”?   You mean you don’t know?)   They break it down  thus: 52 vaporettos, 55 motoscafos, 10 “single agent motoscafos,” which I can’t interpret for you just now, 16 bigger  vaporettos that travel the lagoon  (“vaporetti foranei”), 9 motonavi, and  8 ferryboats.

A motonave.
A motonave.

Naturally all of these  vehicles cause waves, but what compounds the effect is the undertow they create when they stop at one of the 100 or so bus stops (city and lagoon) to drop and pick up passengers.

It’s pretty simple.   Here is an illustration of what  happens every time one of these craft comes and goes:

The vaporetto approaches the next stop.  The captain may not have noticed whether is going with or against the tide; if he's going with it, he'll probably arrive faster than he meant to and have to hit the reverse really hard to break the momentum and get back into position to tie up.
The vaporetto approaches the next stop. The captain may not have noticed whether he is going with or against the tide; if he's going with it, he'll probably arrive faster than he meant to and have to hit the reverse really hard to break the momentum and get back into position to tie up.
He reverses the engines to stop the boat; the mariner throws a rope and ties the boat to the dock.
He reverses the engines to stop the boat; the mariner throws a rope and ties the boat to the dock.
The captain revs the engine in order to bring the boat parallel to the dock.  The water shows the effect of the earlier reverse and the momentary forward.
The captain revs the engine in order to bring the boat parallel to the dock. The water shows the effect of the earlier reverse and the subsequent forward.
To keep tension on the line while loading and unloading passengers, the captain keeps the engines at a very high rate of rpm's.
To keep tension on the line while loading and unloading passengers, the captain keeps the engines at a very high rate of rpm's.
Everybody aboard; the mariner unties the boat and the captain begins to reverse again.  This will give him the necessary momentum to get moving forward again.  Sounds strange, but that's how it works.  So: Back we go again.
Everybody's aboard; the mariner unties the boat and the captain begins to reverse again. This maneuver enables him to turn the boat slightly to starboard, which puts him the ideal position to throw the gears into "forward" and move on to the next stop. So: Back in reverse we go.
And wham!  We're starting to move forward again.
And wham! We're starting to move forward again.
And off we go. On to the next stop, where the same sequence of maneuvers will be repeated. If this looks even slightly disturbing out here in the open water, imagine it happening virtually constantly all along the Grand Canal. All day.
And off we go. On to the next stop, where the same sequence of maneuvers will be repeated. If this looks even slightly disturbing out here in the open water, imagine it happening virtually constantly all along the Grand Canal. All day.
Trailing clouds of glory in our wake.
Trailing clouds of glory in our wake.

On September 15, 1881, the first vaporetto (“Regina Margherita”) began regular service in the Grand Canal.   The imminent arrival of this creation caused tremendous distress and revolt among the gondoliers, who foresaw their doom.   Their turmoil is the focus of a marvelous film, “Canal Grande” (1943), starring several then-well-known Venetian actors, such as Cesco Baseggio, plus a number of real gondoliers.   Too bad it’s all in Italian.

The first vaporetto was soon followed by  a fleet of eight, run by a French company, the “Compagnie des bateaux Omnibus.”   Nothing against that noble nation, I merely note that Napoleon Bonaparte, who conquered and devastated Venice in 1797, was also French.

In 1890 the Societa’ Veneta Lagunare began service between Venice and assorted lagoon locations.   And so it has gone.

Lino remembers when there were still very few vaporetto stops  in the Grand Canal; they were at San Marco, Accademia, San Toma’, Rialto, the railway station, and probably Piazzale Roma, though he won’t swear to it.   In what was still a flourishing local culture, the Venetians could find almost everything needed for daily life in their own little neighborhoods.

This is a bus stop, essentially a dock called a "pontile," to which the vaporetto is tied while exchanging passengers.
This is a bus stop, essentially a dock called a "pontile," to which the vaporetto is tied while exchanging passengers.

There are now 17 stops on the Grand Canal.   They were not installed as something useful to the residents, as noted above, but for the transport of tourists.   Shops have begun to close (I don’t lay this fact at the feet of the wave-and-sucking-causing public transport), so as the population has dropped, and the number of tourists has risen, the locals have had to range further afield to find forage, so to speak, and at the same time have had to use public transport which is usually overstuffed with tourists and their luggage.   During Carnival, most Venetians do their utmost to stay the hell at home.

The city recognizes that  there aren’t enough vaporettos most of the year; during the summer (and Carnival) extra routes and supplementary vehicles are laid on.   But eventually some crisis point will be reached where the number of bodies requiring to be moved and the available space in which to do it will collide.   To use a term which nobody in the navigation business wants to hear.

Zwingle’s Fifth Law states that “You can get used to anything.”   You may quibble, but I can attest that you can definitely get used to this roiling and churning and sucking of many waters.   This isn’t good, but neither can you travel all day in a constant state of rage and anguish.

You can give yourself an interlude of relief by going for a little stroll.   Ignoring the roaring of motors and the shattering of waves, you can really relax in the city which is extolled for having no cars.   I think people who say that must  merely mean  “no traffic.”

Before too much longer, the Grand Canal is going to resemble Runway 3 at O'Hare.
Before too much longer, the Grand Canal is going to resemble Runway 3 at O'Hare. At the moment, it's only like I-95 from Washington to Richmond.
Continue Reading

Motondoso, Part 3: The How

“Motondoso” has very clear, and essentially simple, causes and effects. Anything moving in water, even eels, will create some kind of wake. The wake is the visible, surface part of the turbulence made by whatever is moving — in the present case, the motor’s propellers. The waves spread out in two directions until they dissipate.

In the case of motorboats in Venice, this fact is exacerbated by:

If it floats, it has to have a motor.  This appears to be the only rule that is universally obeyed.  This is an increasingly common scene in the Grand Canal.  (Photo: Venice Project Center)
If it floats, it has to have a motor. This appears to be the only rule that is universally obeyed. Here is an increasingly common scene in the Grand Canal. (Photo: Venice Project Center)

The number of boats:   There are thousands of registered boats in the city of Venice. There are also many which are unregistered. This number spikes every year in the summer when trippers from the hinterland come into the lagoon to spend their weekends roaming around, often at high speed but always with many horsepower, in motorboats of every shape and tonnage. Teenage boys, particularly  from the islands (by which we mean Sant’ Erasmo, Burano, Murano, are especially addicted to roaming at high speed at all hours with their girlfriends and boomboxes.

On a Sunday in July  a few years ago, a squad of volunteers from the Venice Project Center spread out at observation posts across the lagoon, from Chioggia to Burano. Their mission was to count the number and type of boats that passed their station. Whether it was a million boats passing once or one boat a million times, it didn’t matter. They came home with quite a list: every kind of small-to-smallish boat with motors ranging from 15 to 150 hp, hulking great Zodiacs, large cabin cruisers, ferries, vaporettos, tourist mega-launches, hydrofoils from Croatia, taxis, and more. After 11 hours, from 8:30 AM to 7:30 PM, they   analyzed their data. Result: A motorboat had passed somewhere, on the average, every one and a half seconds.

And if weekday traffic is heavy, weekend traffic is three times greater.

The types of boats: In the last 20 years, motor-powered traffic has doubled; at last count 30,000 trips are made in the city every day; 97 percent of these trips are in boats with motors. (There are currently 12 projects in the works for marinas which will add 8,000 more berths.) Of these 30,000 trips, a little  over half are made by some sort of working boat.  

More than 10,000 daily trips are by taxis or mega-launches, and more than 8,000 are by barges carrying some kind of goods (bricks,  plumbing supplies, cream puffs, etc.).   Studies have shown that if there is one category that over time causes the most damage, it’s not the taxi (I would have bet money on that).   It’s barges.   And they are everywhere.   It’s all barges, all the time.

 

This is the milk truck.
This is the milk truck.

 

Appliances and furniture.
Appliances and furniture.

 

 

 

 

 

 

 

 

There have always been large heavy boats moving materials in Venice, but when they were propelled by oars, the backing-and-forthing needed to negotiate spaces and corners didn't involve creating heavy vortexes of water.
There have always been large heavy boats moving materials in Venice, but when they were propelled by oars, the backing-and-forthing needed to negotiate spaces and corners didn't involve creating heavy vortexes of water.
When a heavy boat runs into a wall, it can leave quite a calling card. Here is a popular place to tie up your barge while unloading cargo. Who did this? Everybody and nobody.
When a heavy boat runs into a wall, it can leave quite a calling card. Here is a popular place to tie up your barge while unloading cargo. Who did this? Everybody and nobody.

 

Toilet paper, detergent, and other household supplies come ashore with the flick of a few buttons. Life is good, unless you're an old and fragile city.
Toilet paper, detergent, and other household supplies come ashore with the flick of a few buttons. Life is good, unless you're an old and fragile city.
I know they're heavy, but all this boat to carry a few watermelons?
I know they’re heavy, but all this boat to carry a few watermelons?

 

 

 

 

 

 

 

 

This is a peata, the mega-barge that built and maintained Venice well into the 20th century. It was usually rowed by two people, with one of them also at the tiller. And we require motors to do the same thing because we have to have speed.
This is a peata, the mega-barge that built and maintained Venice well into the 20th century. It was usually rowed by two people, with one of them also at the tiller. Now we require motors to do the same thing because we have to have speed.
These men knew and understood the lagoon, its tides and currents and winds, as no one ever will again, and they exploited them rather than fighting against them.
These men knew and understood the lagoon, its tides and currents and winds, as no one ever will again, and they exploited them rather than fighting against them.

 

 

 

 

 

 

 

Traffic patterns: The problem isn’t merely the number and type of boats, but where they are.   Obviously, the more boats you have, the more waves they will create, and where space is limited (most canals in Venice) these waves quickly accumulate into a roiling mass that dissipates with extreme difficulty.   They are forced to go back and forth, hitting anything they come into contact with, until they finally wear themselves out and die.  

There are canals where the waves don’t expire for hours: the Grand Canal (unfortunately), the Rio Novo, the Rio di Noale, the Canale di Tessera toward the airport, the Canale delle Fondamente Nuove, and above all, the Canale della Giudecca.

This map makes it clear why the Giudecca Canal is fated to carry virtually every boat that wants the shortest route from the Maritime Zone/Tronchetto to and from San Marco.
This map makes it clear why the Giudecca Canal is fated to carry virtually every boat that wants the shortest route from the Maritime Zone/Tronchetto to and from San Marco.

This broad, deep channel has become Venice’s Cape Horn. It is a stretch of water 1.5 miles long [2 km] and 1,581 feet [482 m] wide, and is the shortest and fastest way to get from the Maritime Zone (cruise ship passengers, tourist groups from buses at Tronchetto, barges delivering goods of every sort) to the Bacino of San Marco. One study revealed that the biggest waves in the Lagoon are here; an even more recent survey, conducted with a new telecamera system installed by the Capitaneria di Porto, provided some specific numbers: 1,000 boats an hour transit here, or 10,000 in an ordinary workday.   In the summer, there are undoubtedly more, seeing that an “ordinary workday” includes masses of tourists.

One reason there are so many  boats  is due to the large number of barges, rendered necessary by an exotic system for distributing goods. If you are a restaurant and need paper products, they come on a barge. If you need tomato paste, it comes on another barge. If you need wine, it comes on another barge. In one especially busy internal canal, the amount of cargo and number of barges was analyzed, and it turns out that the stuff on 96 barges could have fit onto three.   But never forget the fundamental philosophy: “Io devo lavorare” (I have to work).

The types of boats: Their weight and length. The shape of their hulls. Their motors (horsepower and propeller shape). All these factors influence the waves that they create.

A number of intelligent and effective changes have been proposed over time, most of which that  would not be particularly complicated, but which would cost money.   So far no one has shown that they consider these changes to be  a worthwhile investment.

Example: The original motor taxis (c. 1930), apart from being smaller than those of  today, positioned their motors in the center of the boat. When the hulls (and motors)  became larger, everyone moved the motor to the stern, which immediately creates bigger waves.   But subsequent improvement in motors and their fuels means that today it would be feasible to maintain the current size of the taxi while moving the motor to the center once again, thereby  immediately minimizing its waves.  Feasible, but no one is interested.

Boats this large made of metal may be necessary for certain kinds of heavy labor, but they are hazardous to the city's foundations not only because of the damage they can cause if they run into a building or fondamenta.  The force of their motors during maneuvers, especially at low tide, really scour out the canal sediments, which are either carried away by the tide (potentially weakening foundations) or pushed up against the underwater walls of buildings which easily block sewer outflows.  Blocked sewers cause accumulations of corrosive chemicals inside the building walls, which eventually also damage the structure.
Boats this large made of metal may be necessary for certain kinds of heavy labor, but they are hazardous to the city's foundations. Although they don't create noticeable waves in the smaller canals because they are going slowly, they contribute to the wave damage in several ways. One is by the chunks they take out of walls if they mistake a maneuver, thereby opening the pathway to waves from smaller boats. Another is the force of their motors during maneuvers, especially at low tide, which can suck the earth out from under the sidewalks. Or the force can push the canal sediment up against the underwater walls of buildings where they plug up sewer outflows. Blocked sewers cause accumulations of corrosive chemicals inside the building walls, which eventually also damage the structure.

Speed: This is utterly fundamental. Speed limits were introduced in 2002 to confront the already serious problem of the waves; the average legal range, depending on what canal you’re in, is between 5-7 km/h. But tourist mega-launches, barges, taxis — almost every motorized boat in Venice has the same need: To get where they’re going as quickly as possible.  

This need has been imposed by the demands of mass tourism, which involves moving the maximum amount of cargo (people, laundry, bottled water, etc.) often many times during the day. Everyone makes up a timetable which suits them and then makes it work.

Studies by the Venice Project Center have revealed several speedy facts in crisp detail.

  1. The height of the waves increases exponentially as speed increases. A small barge traveling at 5 km/h would produce a wake about 2 cm high. The same boat going at 10 km/h produces a wake of nearly 15 cm. (Multiply the speed by 2, multiply the wake by 7.)
  2. Virtually all boats exceed the speed limit. The average speed on all boats in all canals was 12 km/h, which is more than 7 km/h over the maximum speed limit.
  3. Therefore, reducing the speed of the boats would drastically decrease the size of their wakes.

Speed limits would have a positive effect (if they were obeyed) but only if certain laws of hydrodynamics were taken into account, such as the one governing the wake produced relative to the weight of the boat. Here the speed limits have been adjusted to permit the vaporettos (waterbuses), among the heaviest daily craft, to go — not slower, which would be correct — but as fast as the timetable requires.

You can change the laws on speed limits all you want —  you’ll never change the laws of physics.  

Oh yes: there will be waves.

Next:  Part Four: The lagoon experience

Continue Reading

Motondoso, Part 2: The Why

Read Part 1: The What;   Part 3: The How;    Suck It Up;  Part 4: The lagoon’s-eye view

If civilization has reached the stage where most people generally agree that it’s wrong to strike a woman, a child, even a dog, it’s not easy to explain, much less excuse, why an entire city should have to submit to this kind of abuse, a city which depends as much (or more) on its people than the people depend on it.

But then again, it is easy to explain. Sloth, egotism, and a  resistance to contradiction tougher than corrugated iron induce almost all the people with motorboats of whatever size or purpose either to deny that they are creating waves, or say that other perpetrators are far more guilty, or accept it with Zen-like resignation.

All of these put together foster a situation in which  a recent newspaper article could make a serious reference to  the “numerous reports (to the police, of excessive traffic/waves) by Venetians who when they go out in their motorboats have to work miracles to avoid ending up in the water because the waves are so strong.”

People in motorboats complaining about waves. Let me stop and think about that for a minute.

You'll find virtually any kind of boat with a motor in the Giudecca Canal, usually in a huge hurry.  Here we have taxis, one of countless barges, the Alilaguna airport waterbus, and a hotel launch.  What's missing here at the moment, strictly by chance, are innumerable private motorboats of all sizes, as well as the vehicles of public transport: vaporettos, motoscafos, and the ferryboat carrying cars to and from the Lido.
You'll find virtually any kind of boat with a motor in the Giudecca Canal, usually in a huge hurry. Here we have taxis, a tourist launch, one of countless barges, the Alilaguna airport waterbus, and a hotel launch. What's missing here at the moment, strictly by chance, are (among others) the garbage scows, innumerable private motorboats of all sizes, as well as the vehicles of public transport: vaporettos, motoscafos, and the ferryboat carrying cars to and from the Lido.

Waves don’t really care who causes them or why, but each one acts as a hammer hitting anything it reaches. A study more than 10 years ago revealed, via sensors in the Grand Canal, that a wave hit a wall every 1 1/2 seconds. One pauses to imagine what the public response might be in a city — say, Rome — in which a heavily loaded truck ran into a building, especially a monument, every 1 1/2 seconds.   Zen-like resignation doesn’t come to my mind.

For some reason, waves just don’t sound that bad. But they are. And even though they’re right out there in plain view, solutions — and many have been proposed, and re-proposed — have the doomed allure of the classic New Year’s diet: feasible, yet somehow impossible.

One reason is a lethargy at City Hall of spectacular dimensions caused, among several factors, by the lack of ability or desire on the part of the city’s administrators to resist the inevitable shrieking and ranting from any sector which feels threatened by any suggestion of limits. Example: The recent succumbing to pressure by the taxi drivers, and the awarding of 25 new taxi licenses. These will not be taxis which do not create waves, but they will be taxis traveling the same routes which already are suffering the most devastation.

These licenses were granted by the same officials who in other situations solemnly invoke the “battle against motondoso.” Hard to get anywhere with a battle when most of your officers are collaborating with the other side.

One of many signs in the lagoon notifying boaters of the speed limit, here in the Canale delle Scoasse along the Lido.  Note that the speed is given in kilometers (not knots) per hour.  If anyone is going this slowly it's either because he's just spotted a policeman up ahead, or his motor has died and he's being towed.
One of many signs in the lagoon notifying boaters of the speed limit, here in the Canale delle Scoasse along the Lido. Note that the speed is given in kilometers (not knots) per hour. If anyone is going this slowly it's either because he's just spotted a policeman up ahead, or his motor has died and he's being towed.

Of course there are laws — plenty of them. But they are only sluggishly enforced, especially those concerning speed limits. There are sporadic police “blitzes” which snag a certain number of offenders (it’s like shooting fish in a barrel), but these blitzes change nothing, not even for the people who have been handed fines. Taking your chances is part of the Mediterranean worldview, and laws are meant to be ignored.   Fines are part of the annual budget for many waterborne enterprises. Confiscate your taxi? We’ve got more. One taxi owner invited some city politicians to the launching of his new one.

Down here at the waterline, I can tell you that one of the biggest obstacles to reducing waves is contained in three words: “Io devo lavorare” (Literally, “I have to work.”   Figuratively, “Get off my back, do you want my wife and children to be thrown out onto the street to beg?”)

This phrase is lavishly used, on the assumption that it’s a free pass to whatever the person speaking it feels like doing. And when gondoliers stage one of their periodic protests, which are always dramatic because gondolas are inherently harmless, the little red “Danger: Irony” light starts to flash. Gondoliers spend all day carrying people around  through waves that range from “unpleasant” to “dangerous” to “life-threatening” (not an exaggeration; occasional passengers have risked drowning, and some have succeeded). But several gondolier cooperatives do a very lucrative business owning and operating a fleet of mega-tourist launches.  

My favorite little moment was when two gondoliers went to a meeting of Pax in Aqua, the citizens’ group committed to combating motondoso. They went in a motorboat.

It’s not that they should have swum there. I’m just saying.

The gondola race at Murano is one of the most important Venetian-rowing races ever.  Here is a small part of the motor-driven horde, lovers of the oar, which turns out to cheer on their friends and relatives.  Some of these fans will also be gondoliers.
The gondola race at Murano is one of the most important Venetian-rowing races ever. Here is a small part of the motor-driven horde, lovers of the oar, which turns out to cheer on their friends and relatives. Some of these fans will also be gondoliers.

I’ll tell you when I gave up. It wasn’t the Sunday afternoon we barely made it back alive rowing our little Venetian topetta from Bacan’, one of the most popular lagoon summer spots to hang out in boats, which means motorboats. The waves were heavy, frantic, aggressive; they came from every direction as boat wakes smashed into each other. So: No more Bacan’ for us. We can just stay home and take up paper-making.   Problem solved.

No, I could hear the air seep out of my capacity to hope on another Sunday afternoon in 2002, I think it was,  when we were walking along the rio di San Trovaso — a very narrow canal which is always busy because it’s one of the  shortest cuts between the Giudecca Canal and the Grand Canal.

For weeks, maybe months, long warning strips of red and white tape had been strung along parts of the fondamenta bordering the canal because it had become so unsafe to walk on. The waves from the constant traffic had done their inevitable work  weakening the sidewalks’ foundations, in which you could easily see cracks, cracks that were widening thanks to the waves rushing in and out, pulling the soil from beneath the paving stones.   The whole walkway  was ready to cave in.

In that period, the then-mayor Paolo Costa had tried a novel approach to the problem: He had appointed himself Special Commissioner against Motondoso, which gave him extraordinary powers to deal with the deteriorating situation and also — well, why not? — get an extra paycheck.

His idea was that the bureaucracy had proved incapable of dealing with  the waterborne anarchy which is obviously destroying the city, and the police hadn’t been noticeably effective in enforcing the laws (which you could understand, seeing that there are so few  police and so rarely are any dedicated to monitoring speed limits). Therefore  a sort of instant dictator would have to step in to impose order.

Even a classic boat, such as this Burano-type sandolo, almost always have motors clamped onto them.  It might be only 15 hp, but that's irrelevant.  A motor there must be.
Even classic Venetian boats, such as this Burano-type sandolo, almost always have a motor clamped onto them. It might be only 15 hp, but that's irrelevant. A motor there must be.

The resulting special decree (Ordinanza n.09/2002, prot. 38/2002, February 21, 2002) outlines speed limits, and boat specifications, and canals name by name, to a degree which makes it clear that if every regulation were to be obeyed wars would cease, hunger would disappear, and illness and poverty would become but an ancestral  bad dream. I’m sorry it’s only in Italian, it makes genuinely inspiring reading.

Suddenly we saw a motorboat come screaming down the canal, faster than any boat I’d ever seen here, hurling walls of white water against the trembling embankments. We stopped, stunned. Everybody walking along had stopped. Then the boat stopped. We heard voices. A few people on the sidewalk were talking to the people in the boat. And then it became clear.

They were filming “The Italian Job,” and this was just one of many sequences the city was to witness over the next few days or weeks (I can’t remember). Boats were racing up and down canals in a way that not even taxi-drivers could have dreamed of. Of course, if a taxi driver were to go this fast, he’d have to go to jail, or hell. For a movie, though — that’s something else entirely.

And who gave the permission for this film and these high-speed chases, and these walls of white water? The mayor. Excuse me, I meant the Special Commissioner against Motondoso.

I wish I could say I made that up, but I didn’t.

Continue Reading

Motondoso: Waves Gone Wild, Part 1: The What

Just one of the countless waves (here, the Giudecca Canal gives an uppercut to the Zattere) which are reducing Venice to rubble.
Just one of the countless waves (here, the Giudecca Canal lands a left hook on the Zattere) which are reducing Venice to rubble.

Slapping. Punching. Thudding. This is the sound of what things have come to. For 1,795 years, Venice celebrated Ascension Day with a ceremony in which the doge threw a golden ring into the sea and intoned the words: “Desponsamus te, O Mare, in signum veri perpetique dominii.”   (“I wed thee, O Sea, in sign of true and perpetual dominion.”)  In this case he was referring to the Adriatic, and possibly even the Mediterranean, and the Venetians did an excellent job of this for a long time.   But the Venetian lagoon is a body of water which resists domination.   It is not a happy marriage.

The gondoliers at the Molo, on the Bacino of San Marco in front of the Doge's Palace, finally installed a breakwater at their own expense. It's not the perfect solution, but it's better than nothing.

Over the past 50 years, the complex rapport between land and liquid, hitherto marred by only occasional bickering — an engineering misunderstanding, say, or some meteorological outburst — has now reached the stage of open battle.

But contrary to the general impression the world has of  Venice’s rapport with its waters, the most serious problem  does not involve acqua alta, or high tide. It is motondoso (sometimes moto ondoso), or the waves caused by motorboats, which is literally killing the lagoon’s erstwhile spouse.   And unlike other forms of pollution or pressure,  waves are a little hard to keep secret.   The sight and sound of crashing water has become nearly constant.

Venetians routinely refer to motondoso as “the cancer of Venice.”

If you’re not impressed by the roiling high seas surrounding the city (try stepping between the leaping and plunging dock and vaporetto after the motonave — or better yet, the Alilaguna, the yellow airport “bus” — has just passed), give a glance at any canal at low tide.

You’ll see walls with chunks of stone and brick gone, stone steps fallen askew, cracks and fissures snaking up building walls from the foundation to the second floor, and even higher. It doesn’t take many canals before you begin to wonder how the city manages to stay on its feet. There are palaces on virtually every canal which have holes in their foundations bigger than hula hoops —  dank caverns stretching back into the darkness. I have seen them with these very eyes. And if I’ve seen them, so has everybody else. But it just keeps getting worse.

Several years ago the fondamenta on the Giudecca facing the eponymous canal was finally completely repaired.  Years of pounding waves were causing it to literally fall into the canal.  But the waves continue as before — on the contrary, they’re increasing.  The force, the height, the frequency, pick what you will.  It’s all bad.  (One study has stated that the highest waves in the entire lagoon are in the Giudecca Canal.)

Therefore the fondamenta is beginning to weaken again in the same way, which you can check by looking at the point at which a building is attached to the fondamenta.  Cracks are opening up.  Again.  

So fixing — or saying you’ve fixed — a problem doesn’t count for much if you haven’t, you know, actually fixed it.

On the Giudecca: The green is dangerous to people above, the waves are dangerous to the fondamenta below. Waves can damage just about anything they can reach.
The constant spray from the waves creates the ideal environment for a type of algae which is spectacularly slippery. And in the winter, spray turns to ice. You're on your own.
It's not hard to find scenes like this, or worse, below the waterline. Here, a house near Campo Santa Maria Formosa. And just imagine how happy the owners of this house must be. Who pays for repairs is a saga unto itself. (Credit: Italia Nostra Venice Chapter)
Low tide here is an appalling revelation. One of the primary causes of this damage are enormous iron workboats. If one bumps into a wall even slightly, it opens a crack (or hole) which the waves keep eroding. Hey, it's not their wall. (Photo: Italia Nostra)
This is one version of the intermediate stage, here on the Riva dei Sette Martiri facing the Bacino of San Marco. The waves are working away underneath and eventually gravity will take over. This picture is a small illustration of how this phenomenon fits into real life: It's just normal by now. No warning sign or barrier to keep people away, no indication whatever that anything is going wrong here. This silent catastrophe is just sitting here peacefully in broad daylight as people wander by.
This is one version of the intermediate stage, here on the Riva dei Sette Martiri facing the Bacino of San Marco. The waves have been pushing and pulling underneath and gravity has begun to take over. Just imagine if this were happening under your house. And yet, this is normal by now. There are no warning signs or barriers, no indication whatever that anything is happening here. This silent catastrophe is just sitting here peacefully in broad daylight as people wander by.
Waves working night and day will eventually produce a result like this ruined fondamenta facing the Scomenzera canal just behind Piazzale Roma. The pavement looks like a dead parking lot but that is because it's undergoing renovation. This is almost certainly necessary because the pavement was giving way due to the waves in the canal weakening the soil upon which it rests. The stone border makes it eminently clear what that eventually means. The fondamenta will eventually be new, but the waves will continue – narrow as it is, this is a major canal for vaporetto and barge traffic.
Waves working night and day will eventually produce a result like this ruined fondamenta facing the Canale di Santa Chiara just behind Piazzale Roma. The former walkway looks like a dead parking lot because it's undergoing renovation, work almost certainly necessary because the pavement was giving way due to the pounding waves in the canal. The fondamenta will eventually be new, but the waves will continue – not only is the canal narrow, it is a major route for vaporetto and barge traffic.

Next: Part 2: The Why

Part 3:   The How

Suck It Up

Part 4: The lagoon’s eye view

Continue Reading