[Talk-us] Announcing the DC Sidewalks Project

[Serge Wroclawski]

Folks,

I've been working a few months on a project which is now ready to
launch, the DC Sidewalks Project: http://dcsidewalks.emacsen.net

As many of you know, we have excellent new routing software, and it
does a great job for cars. But we also have pedestrian routing, and
right now we have very poor data for that in the US. I'd like to
change that, and I'd like your help.

What I've done is to create a customized PL2 instance which renders
streets and highlights missing sidewalk data. I also provide a
background layer of imagery, showing the pavement. From these two
things, you can determine if a road has a sidewalk, and mark it up
using a simple sidewalk={both|left|right|no} tag.

This will allow a router to determine if the street is walkable.

Right now the data is limited to Washington, DC, where the pavement
data is publicly available.

This project is more than about sidewalks. It's the first of its kind,
a customized Potlatch 2 instance with customized imagery, MapCSS and
presets.

I hope to be able to use this technique to make more custom PL2
instance sites, where mappers can focus on a single feature.

The site is going to grow and change over time, but everything there
works today, so after months of working on it, I'm finally formally
announcing it.

Happy mapping,

- Serge

___
Talk-us mailing list
Talk-us@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-us

Re: [Talk-us] Announcing the DC Sidewalks Project

[Nathan Edgars II]

On 5/7/2011 9:57 AM, Serge Wroclawski wrote:

What I've done is to create a customized PL2 instance which renders
streets and highlights missing sidewalk data. I also provide a
background layer of imagery, showing the pavement. From these two
things, you can determine if a road has a sidewalk, and mark it up
using a simple sidewalk={both|left|right|no} tag.


If you expand the project outside the US, you might want to avoid the 
word 'pavement', which means sidewalk in the UK.


This will allow a router to determine if the street is walkable.


It's certainly more pleasant to walk on a sidewalk, and a router should 
prefer sidewalks, but any street is walkable unless tagged foot=no. You 
simply walk on the side of the road, against traffic.


___
Talk-us mailing list
Talk-us@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-us

Re: [Talk-us] Announcing the DC Sidewalks Project

[Gregory Arenius]

Thats really awesome work Serge.  Not just a good idea but well
implemented.  Really slick.

Thanks for your hard work.

Greg
___
Talk-us mailing list
Talk-us@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-us