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From: Frank Krygowski <frkrygow@sbcglobal.net>
Newsgroups: rec.bicycles.tech
Subject: Re: New Bike Path
Date: Mon, 15 Jul 2024 13:58:22 -0400
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On 7/15/2024 11:57 AM, Roger Merriman wrote:
> Rolf Mantel <news@hartig-mantel.de> wrote:
>> 
>> Basically, in town there is no way to build a safe bidirectional cycleway.
>>

I think there are rare exceptions, and I think "safe" is not a binary 
condition. But I certainly think most introduce serious hazards not 
present in normal roads.


> Absolutely there is, plenty in london that work well, but they don’t cross
> drive in sort of places but certainly in London the two tend to be in very
> different locations!...
> Town Bidirectional cycleway.
> 
> https://maps.app.goo.gl/8DeJ2xi7ZP2cbXsG9?g_st=ic
> 
> Some junctions are light controlled others don’t warrant it, it seems to
> work well, I only use it occasionally and often like I will on Sunday for a
> Cheese market being Chiswick.

Adding special traffic lights just for bikes, as in your photo, can 
help, but at a penalty of extra delays for both bikes and cars. I rode 
bike lanes with extra bike traffic lights in Stockholm, for example, and 
sometimes waited at our "special" red light while parallel cars had a 
green. I saw other cyclists who seemed more familiar with the area 
ignoring the red.

And if there are very many driveways, the hazard we're discussing exists 
at each one. Turning your photo around shows this:
https://maps.app.goo.gl/AxRNjBuU3RadBnUM8 followed by several other 
junctions with streets or lots that would have been potential problems.

-- 
- Frank Krygowski