[YZF]

Here is Marine Drive in Vancouver: https://maps.app.goo.gl/ThnKn7PmD8sKSnNs5

Speed limit 50km/h ... It has lights and intersections. Almost no pedestrians.

Vancouver has many wide multi-lane streets. Some in denser areas with more pedestrian traffic some less. It has almost no real highways going to the city.

[alexanderchr]

Agreed that it makes no sense to restrict that kind of road to 30km/h, but to be fair most cities that have moved to 30km/h would have excluded that road. Even Amsterdam left the main throughfares at 50km/h: https://www.amsterdam.nl/30-km-u-in-de-stad/

[aDyslecticCrow]

yes. I feel like European cities makes greater distinction between "large road" and "small road". A road this wide and open would have barriers, trenches, and road-exit lanes rather a red light.

I took a jump around with google maps for an example; https://maps.app.goo.gl/1qgPoM35RCjxLR2d9. This is the E12 road through Helsinki. It would be considered a major road that connects Helsinki to the rest of the country. Barriers, trenches, an underpass for pedestrians to cross to the other side, overpasses and merge lanes to leave the road or turn around. This road is capped to 80km/h since its near to the city, but would likely rise to 100-120km/h when there are less mergers.

Leaving this "major road" quickly gets you into more normal larger city roads like this; https://maps.app.goo.gl/dP5FiMAPcXn3xMiH7. Driving 50km/h on this kind of road can be suicidal in sections (seems like 40km/h is the speed limit on the google maps images), and most your time is spent navigating a-lot of other cars, red-lights and turns.

1 more turn, and you're in the 80% of city roads; https://maps.app.goo.gl/HELXkV9xjmLyf5Q77. Drive 50 at your own peril (that's 2 way road with parked cars, and very typical)

When the article discusses "30km/h for city roads", this is closer to what you should visualize compared to the Vancouver road. The style of road you show would be a weird limbo between too large to be safe for pedestrians, but still used as a minor road for some reason.

[YZF]

The E12 looks like a proper highway that in many places would be at least 90km/hr (possibly a variable speed limit depending on the amount of traffic).

Here's another local example, Granville Street, which is also 3 lanes but definitely denser/busier: https://maps.app.goo.gl/4X6RRVKUFKNoFA248

What tends to happen in practice is that people here drive faster than the speed limit on some of these, e.g. both my examples I would say 70km/hr is a lot more common than the actual 50km/hr speed. On smaller streets, lessay: https://maps.app.goo.gl/5AaW7FgiuK5ti6sy6 you would typically go slower than the limit, especially if there are more cars parked, or pedestrians present or more traffic. In some of the smaller streets traffic can't even pass both ways when there are cars parked and people alternate the right of way.

I tend to think of speed limits as a way to fine drivers rather than a true safety thing. If you want people to drive slower you need to create the conditions that will make them drive slower. In many small streets that tends to be speed bumps (which I don't like) but there are other solutions. You want the speed to feel natural to the drivers, i.e. that most reasonable people would drive that speed in order to be able to respond to what they predict might happen.

Reducing speed limits feels like a cop out. A better solution includes better thinking about city design, roads, and transit. Reducing the speed limit is unlikely (at least around these parts) to actually result in people driving slower.