[OSRM-talk] SafestWay: OSRM + OSM = Making walking safer, one step at a time.

[Emil Tin]

Hi Jeffrey,

Cool project! A few thoughts:

If you don' need differentiated speeds for different way types, you can just set the speed according to crime rate, as you suggested. In that case you need impedance. The impedance branch is not completed yet.

Some ways are quite long. But at the moment LUA scripts only process ways, not individual segments. The challenge is similar to how to hande elevation data. There has been some discussion on this, see https://github.com/DennisOSRM/Project-OSRM/issues/546, there are also links to some branches that might be useful.

Best regards,
-Emil




On Apr 11, 2013, at 21:23 , Jeffrey Mealo <jmealo at stringtheoryschools.com> wrote:

> Hello,
> 
> I'm writing an open source stack called Safest Way. It provides pedestrians the safest way to walk based on crime data through a mobile application.
> 
> SafestWay began as a civic hackathon project in the city of Philadelphia (USA). Due to a budget crunch, a number of our schools closed. This lengthened the walk to/from school for many students.
> 
> The immediate goal is to help students find the safest way to walk to school in my city. I present whatever I have done 12 days from now.
> 
> The overall goal is to make a software stack that any city with crime data can roll out on modest hardware with as little technical experience as possible.
> 
> OSRM is the easiest and fastest routing engine by far, but I have some questions that cannot be easily communicated via the mailing list.
> 
> I want to make sure I'm going about things the right way.
> 
> In brief:
> 
> I need impedance, turn restrictions, and no one ways.
> 
> Since impedance is in a feature branch; right now the plan was just to feed in crime as speed data.
> 
> The speed data would be fed into the .osm via a changeset.
> 
> I'm trying to find the fastest way to match crimes to ways, which ideally, would break at every intersection.
> 
> Right now I'm using the GEOS library from Node.JS.
> 
> If possible would anyone be available for Skype or interested in working on the project?
> 
> I was thinking of using the LUA profile to weight the crimes and do some geospatial operations using SpatiaLite, however, getting SQLite working from LUA isn't consistent with an easy to use and deploy stack :-)
> 
> Kudos on all your work so far; I hope my project helps bring more attention to yours.
> 
> Thanks for your time,
> 
> Jeffrey Mealo
> http://safestway.org/
> 
> _______________________________________________
> OSRM-talk mailing list
> OSRM-talk at openstreetmap.org
> http://lists.openstreetmap.org/listinfo/osrm-talk

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/osrm-talk/attachments/20130411/db8f5067/attachment.html>