<div dir="ltr">At the risk of going down a rabbit hole, I'm going to suggest some ways to think about this that will hopefully spark some discussion related how this tag could be used with pedestrian navigation.<div><br></div><div>## Similarities to shoulders and an opportunity to figure out how to tag them.<br><div><br></div><div>Would it be fair to say that the only differences between this feature and a shoulder are (A) it has paint designating where pedestrians should go and (B) it has some right-of-way implications? Because it's often the only pedestrian option in rural areas near me, I'd appreciate having a way to tag shoulders and then enhancing them with a subtag. e.g., something like shoulder=left/right/both + shoulder:right=pedestrian_lane.</div><div><br></div><div>## Challenges of mapping pedestrian paths as street attributes</div><div><br><div>As proposed, this tag would apply to streets. I understand the appeal - it's a minimal change from current maps and the feature is basically just paint on a street - but I think there are also some potential risks to describing the pedestrian path this way that would be valuable to discuss. Examples:</div><div><br></div><div>(1) Intersections, particularly ones with marked crossings. sidewalk=left/right/no/both has difficulties with this as well. Put yourself in the shoes of someone trying to analyze the paths a pedestrian could take using this tag to determine that there is a path using pedestrian lanes and a crosswalk. There is a street way (way 1) with pedestrian_lane=right that continues through an intersection. There is a crosswalk tagged as highway=crossing, crossing=uncontrolled on another way that shares a node with another street way (way 2). How do you proceed and associate these path data so that you can reliably say that a pedestrian path exists that uses that crosswalk? I believe it will require some fairly nerdy graph analysis I think it could be a significant hurdle for using this data.</div><div><br></div><div>(2) Transitions to other pedestrian paths, such as sidewalks. Pedestrian lanes are sometimes used as a means to have a "temporary" sidewalk-like feature, pending some future construction of actual sidewalks. There will be sidewalks that are half-built, then transition into a pedestrian lane. How do we tag that situation, given a separately-mapped sidewalk?</div><div><br></div><div>With the above issues in mind, what would you think about allowing highway=footway, footway=pedestrian_lane as a possibly redundant tagging option? </div><div><br></div><div>## Usefulness / data consumption</div><div><br></div><div>Knowing where pedestrian lanes are would be very useful, in my opinion, but the devil is always in the details. Do you have any examples of how this data could be consumed downstream? Not saying there always has to be a data consumer, but the exercise could reveal advantages between different approaches.<br></div><div><br></div><div>## Other sources</div><div><br></div><div>A potentially helpful resource during these international comparisons: <a href="https://www.fhwa.dot.gov/environment/bicycle_pedestrian/publications/small_towns/page05.cfm">https://www.fhwa.dot.gov/environment/bicycle_pedestrian/publications/small_towns/page05.cfm</a>. The FHWA defines standards in the United States.</div></div></div><div><br></div><div>Best,</div><div><br></div><div>Nick</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Nov 1, 2019 at 2:13 PM Markus <<a href="mailto:selfishseahorse@gmail.com">selfishseahorse@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi everyone,<br>
<br>
Following the recent discussion about pedestrian lanes (marked lanes<br>
on a roadway, designated for pedestrians), i've now written a proposal<br>
page for a new key pedestrian_lane=*:<br>
<br>
<a href="https://wiki.openstreetmap.org/wiki/Proposed_features/Pedestrian_lane" rel="noreferrer" target="_blank">https://wiki.openstreetmap.org/wiki/Proposed_features/Pedestrian_lane</a><br>
<br>
Best regards<br>
<br>
Markus<br>
<br>
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