[rimantas]

That's a really shitty comparison. Unless cyclists really do drive in such packs (which they don't). In reality, the effective space taken by cyclist on genera purpose road is bigger than a car — you need a huge safety margin to overtake a cyclist, and if you cannot do that you a forced to follow them untill you can and that's really ineffective. All this does not apply to dedicated cyclist roads/lanes, of course.

[IanCal]

Depends where you are but some cities easily have the density suggested there.

> In reality, the effective space taken by cyclist on genera purpose road is bigger than a car — you need a huge safety margin to overtake a cyclis

More than a car? I've certainly not been given more space when people overtake me. Remember a car is 6 feet wide, that's quite a bit of space already that's taken up by a car.

[CalRobert]

I can assure you most drivers don't concern themselves with providing huge safety margins.

Also, when you have a decent number of cyclists and congested roads they often do travel in packs. See here for an example

https://www.youtube.com/watch?v=h-4ynw8672A

or here

https://www.youtube.com/watch?v=xhuxmiNsHmA

The city in these videos has many cyclists (and one of the most successful bike-share schemes in the world), but rather scandalously provides very little bike infrastructure and even less enforcement (bike lanes are generally used for parking).

Finally, you might wish to note that one generally refers to "riding" a bike in English, rather than "driving". The same goes for motorcycles in most contexts. This is different from some other languages, such as German, where the same word is used for operating all of those conveyances.

[celticninja]

You have never commuted by bike in London.

http://keyassets.timeincuk.net/inspirewp/live/wp-content/upl...

[aninhumer]

Yes, if cyclists have to use infrastructure not designed for them, then they likely take up a fair amount of space.

But that doesn't make the comparison "shitty", it just means you need to do more than convincing people to cycle to get the advantages.