<div dir="ltr">Sharrow markings are typically (and properly) only found on bicycle routes that do not have dedicated bicycle lanes, and bicycle boulevards. cycleway=shared_lane in the US, save for locales that Did Not Get the Memo™, should also have bicycle=designated and be a member of the appropriate type=route, route=bicycle relation.</div>
<div class="gmail_extra"><br><br><div class="gmail_quote">On Sat, Jan 12, 2013 at 9:05 AM, Greg Troxel <span dir="ltr"><<a href="mailto:gdt@ir.bbn.com" target="_blank">gdt@ir.bbn.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="im"><br>
Balgofil <<a href="mailto:Balgofil@gmx.net">Balgofil@gmx.net</a>> writes:<br>
<br>
> 1. "Radfahrstreifen": cycle lanes which are mandatory indicated by a<br>
> sign and a solid lane (cycleway=lane)<br>
><br>
> 2. "Schutzstreifen" cycle lanes with dashed lines not so wide as a<br>
> "Radfahrstreifen" and therefore only advisory and no sign (cycleway=?)<br>
<br>
</div>I think the most important thing is to define the semantics of what is<br>
required. One problem (feature?) of OSM tagging is that there are a lot<br>
of implicit defaults, and these make it hard to use the data. I think<br>
we should be gradually defining the implicit tags (in the main tag wiki<br>
page, not in the database). By that I mean things like highway=footway<br>
implies motorcar=no.<br>
<br>
It sounds like Radfahrstreifen means that a cyclist may not ride on the<br>
road outside the lane. But with Schutzstreifen, a cyclist may ride on<br>
the road to the left of the dashed line. Or by mandatory do you mean<br>
that cars are prohibited from crossing the solid (white?) line into<br>
Radfahrstreifen but not prohibited from crossing the dashed line into a<br>
Schutzstreifen?<br>
<br>
In the US, cycle lanes on roads seem to usually have solid white lines,<br>
with dashed lines for turning places. I am unclear on whether there are<br>
restrictions on cyclists in various states (in MA, I don't believe so,<br>
beyond the standard rule that cyclists must ride as far to the right as<br>
can be done safely, which is usually less far than cars think :-). But<br>
I think cars are prohibited from driving in cycle lanes - I did see a<br>
Big Brother sign exhorting cars to stay out.<br>
<br>
In the US, my impression is that sharrows are just a reminder to<br>
everyone of the normal rules which always apply and have no real<br>
significance. In that respect, they are kind of like signs that say<br>
"Please drive nicely", or "Check twice; motorcyles are everywhere.".<br>
<br>
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<br></blockquote></div><br></div>