Using Lane Width in Ped Crossings

Often time Pedestrian Crossings occur with odd shapes.  The use of the lane width attribute can be employed to correctly model many such cases.  The use of  lane “skew” can also be employed.

  • Provide some eye candy examples etc.
  • We probably need a basic article on width this can draw from as well, put into the Geometric section
  • Describe how the use of width  (and also of skew) can be used to model some strange ped crossing use cases.
  • Use the model deployment examples for some of these.

Article is still Very Draft at this point, Oct. 2nd

A Presentation

The same information as the example to be provided is available in this power point set of slides.  [Please credit  this site if you reuse this]

How to build-up odd shaped Pedestrian Crossing Lanes

Working Scrap/map-spat/creating-more-complex-ped-crossings-flatbush/

Here is some artwork I want to be able to overlay with the Goggle image to deal with the “you can draw on top” rule.

The intersection at Flatbush and Atlanta (part of the NY pilot project in Brooklyn, NY) provides two good examples of Odd Shaped Pedestrian Crossings in Intersections. To best model these lane the use of lane skew and variable lane width is required.

Here are two images of the overall intersection.  [Hint:  Click on any image to enlarge it]

               

Case #1

Here is a close up of the North-West corner with the North side Pedestrian Crossings we develop.

Here is the set of control lines and the resulting lane polygon

        

TODO make is possible to slide one of these over the other at the same scale

Case #2

Here is a close up of the South-East  corner with the East side Pedestrian Crossings we develop.

Here is the set of control lines and the resulting lane polygon

 

      

TODO make is possible to slide one of these over the other at the same scale

 

Further Reading

Cross link some of this to the article on lane skew uses and expand on how Pedestrian Crossings can use it as well.

Was this article helpful?

Related Articles

Leave A Comment?

You must be logged in to post a comment.