A view from the cycle path: Ice cold in Assen

Thursday, 24 January 2013

Ice cold in Assen

This cycle-path, 200 m from our home, provides a direct
route to the centre of the city. Just like the other cycle paths,
it's been swept and salted. This tight grid of high quality
primary routes is essential to make cycling accessible to all

It felt a little parky when I took our dog for a walk last night and on returning home I noted that someone had asked me about how we get on cycling in the winter. How cold is it ? What condition are the cycle-paths in ? I decided I'd take some photos today and write a little about this (again).

Elsewhere in the city, a single direction cycle-path also
cleared of snow and ice

On return from the dog walk I noted that the outside temperature was a little below -11 C. For most of the week beforehand the temperature had been hovering around -5 C at mid-day and as I write this it's about -6 C. It'll get colder overnight.

A minor cycle-path, not necessary to use, and un-treated

We've not had masses of snow compared with previous years. About 17 cm of snow (7 inches) fell on Monday. It kept falling all day and though I swept our driveway twice, it didn't much look like I'd bothered by Tuesday.

Simultaneous green crossing in winter. I stopped for red.

During Monday things were a bit difficult because even the most effective of treatments for roads can't deal with snow which continues to fall. However, as soon as it stops the local government does a very good job of sweeping the paths and treating with what appears to be a mixture of salt and sand.

Main route North out of the city. Someone with a passenger

Main cycle-paths are treated immediately, as are main roads. Residential streets are treated last. Where cars have been they compress the snow and this is more difficult to remove so conditions on some of these streets can remain unpleasant.

This is the same type of vehicle as is used for sweeping
cycle-paths. If the paths are of proper width then you
don't need narrow vehicles.

The photo on the left of a snow-plough going along our street shows how it can be. This was his second pass within 10 minutes. The gritters are switched on and off by computers using GPS. Therefore, they don't waste excessive salt where it's not needed but achieve an even spread around the city, wherever the driver happens to go. Without this, in the past, the area around the depot tended to be treated better than outlying areas.

We still have studded tyres in stock, as well as many other genuinely useful cycling products. There are more stories about gritting and snow removal,

4 comments:

Koen said...: I saw your ice-bat video a while ago, and it really looks like fun. It's a lot faster and safer without the propellor, isn't it? Still, not a chance to overtake a professional skater. I don't expect it to catch on very much in NL, but for people who never got to learn how to skate, it can be a very nice way of making trips on the ice otherwise reserved to fast skaters...; 25 January 2013 at 11:07
Koen said...: ....or perhaps a merger with a Whike, so that you can put a sail on it as well?
(http://www.whike.com/)

Even more fun! :o); 25 January 2013 at 16:20
David said...: What do you mean "even the most effective of treatments for roads can't deal with snow which continues to fall"?

Many places in Canada manage to do just that: the roads are pre-gritted and salted ahead of a snow event and snow plows are sent out during the snowfall. Some places in the Canadian Rockies get so much snow that if you waited until it stopped falling before starting to clear the snow it would be a metre or more deep.

Here's a 10 min long video of a snowplowing operation during a fairly heavy snowfall in Toronto at night. Note the combination of blue and amber lights on the plows - the blue is far more visible in the nighttime snow conditions.

http://www.youtube.com/watch?v=AOmT97xy1yA

For something verging on overkill, here's two dozen (!) snow plows out on a freeway in Toronto:

http://www.youtube.com/watch?v=lUds1pWKMjs

It's too bad we don't devote even 1% of those kind of resources towards our cycling infrastructure.

On a different note, it's a little curious that the snow plow pickup truck has a trailer carrying the gritter rather than just putting it on the back of the pickup truck. That significantly reduces the flexibility of manoeuvre (e.g. reversing), especially in country with generally narrow streets like the Netherlands. A secondary advantage is that if the truck is 4WD, the weight of the gritter helps with traction.; 27 January 2013 at 04:51
Koen said...: @David James: we do just that here in NL. They start before the snow falls. I guess David H meant you can never take all of it away from all roads if it continues falling.
Mark Wagenbuur has posted an interesting summary of snow clearing on Dutch cycle paths. In the second video you can see all kinds of snow gear uses, from heavy trucks and tractors to brushing machines:
http://bicycledutch.wordpress.com/2013/01/17/dashing-through-the-snow/; 29 January 2013 at 08:42

Posts sorted by subject

The positive stuff
Three types of safety - As well as preventing injuries and death, high quality cycling infrastructure addresses both subjective safety and social safety which are of vital importance in encouraging people to cycle.
A second revolution took place on Dutch streets in the late 20th century, transforming streets which were just as clogged by cars as those of other nations.
Pedestrians are well catered for in the Netherlands and pedestrianized shopping streets are common. Usually they allow cycling for access.
Dutch Safety Figures - Cyclists in the Netherlands are the safest in the world, but it has little if anything to do with "safety in numbers".
Sustainable safety - the principles which have lead to Dutch roads, streets and cycle-paths being safe.
A million per hour - The scale of cycling in the Netherlands is enormous. Dutch people make more cycle journeys each day than the entire English speaking world put together.
Campaigning - a collection of posts about how to campaign for more cycling. Primarily campaigning should be for children to be able to cycle. These links include reference to "Stop the child murder", a successful campaign from the 1970s.
What Works - examples of policy, infrastructure and campaigning which have made a different in the Netherlands.
Superhighways - "Cycling superhighways" are not a new idea in the Netherlands
Cycle Paths - Well designed cycle paths benefit all cyclists, regardless of experience or speed
Segregation without cycle paths - you don't always need a cycle path to keep cyclists safe from motorists
Unravelling of routes is vitally important
History - how the Netherlands got to where it is now. See especially "Stop the child murder"
Before and After - views of places before and after they have been transformed for cycling
Directness - examples of prioritising cycling
Traffic Lights - examples of how cyclists can be prioritised and kept safe at traffic light junctions. Note that it's almost always possible to turn right on a red light when cycling in the Netherlands.
Roundabouts - roundabouts in the Netherlands have one very important feature to learn from: They keep cyclists away from motor vehicles. This is far more important than the differences in geometry vs. roundabouts in other countries.
Exceptional infrastructure is always nice to see, but remember that a dense network of mundane routes is far more important to boost cycling modal share
Gritting of cycle paths - dealing with snow and ice.
Children - It may seem hackneyed, but children really are the future. If they can't cycle safely then where will future adult cyclists come from ? This is why children should be the primary focus of campaigners. Note also that according to UNICEF, Dutch children are the happiest in the world.
School travel - Everyone knows that Dutch children cycle to school, but it's a surprise to many people that school trips are also usually by bike.
Cycle Parking - including our favourite design of stand.
Cycle Parking at railway stations, see in particular Groningen and Assen as each have multiple posts showing how the cycle parking has grown over time.
Health effects of cycling
Road Works - It's important that cyclists are thought of when there are road works. If the environment becomes hostile for cyclists then they may stop cycling and never start again.
Commuting - Commuting cyclists are interesting, but they're not the only people who should ride bikes.
Anatomy of a reliable everyday bicycle - the common features of bikes used by nearly every person every day in the Netherlands.
Speed - Some people have the idea that Dutch cyclists are slow. This isn't true. It is just that in the Netherlands, everyone cycles, including the slow people. Fast cyclists are as fast as anywhere. These posts show people who ride faster than average, using the same infrastructure as those who ride slower.

The less positive stuff
What not to do if you want a cycling "revolution" - Long list of interventions and policies which are not helpful.
Copy the best examples from the Netherlands - a short list summarising the above. Important to copy the best examples, not just anything "Dutch". Bear in mind that the Netherlands is not perfect.
Shared Space - this much hyped idea simply does not work well. It disenfranchises the vulnerable and claims of safety are exaggerated. Don't confuse the concept with far more successful nearly car free streets.
Shared Use Paths designed to be used by pedestrians and cyclists together. These rarely work well because the two user groups are too different and it leads to conflicts. They are not built in the Netherlands (but cycle access to pedestrianized zones is good).
Strict (or presumed) liability - If you think this is an important part of why people cycle in the Netherlands then it is probably not what you think it is.
Helmets - one of several ways of scaremongering about the supposed dangers of what is actually a very safe means of transport

Myths about cycling

Long list of myths and Excuses - Various reasons that many people, even existing cyclists, give for why the cycling rate is low in their country, including:
  "our streets are too narrow"
  "it's too expensive"
  "our population is too spread out"
  "we have hills
  "our distances are too great"
  "it took decades in the Netherlands"
  "it's because of the price of gas"
  "it's the weather"
  "Cycle-paths cause indirect journeys"
  "Cycle-paths make people slow"
Cycling is "booming" in Britain - a claim we hear remarkably frequently, but it'll take a lot more than the action taken now before it will be true.
The Truth about Copenhagen - Pretty pictures and nice branding are all very well, but facts are important too. Denmark has no explanation of why the cycling modal share is falling in Copenhagen. The Netherlands has avoided this problem and sets a much better example of how to achieve a high cycling rate.
The Truth about Cambridge - Cambridge in the UK has made claims of being a true cycling city. The city does have the highest cycling rate in the English speaking world, but there are special reasons for its high cycling rate which cannot be copied elsewhere. Most people don't talk about this. I do.
London Superhighways - Unfortunately, London seems to be having trouble coming to grips with the idea of prioritizing cyclists.
Boris Bikes - London's bike share scheme, just like others worldwide, lacks the capacity to make any real change, and makes up for it with hype.