Open Curbs

Open Curbs is one of several open standard for curb data, as well as an open, publicly accessible repository for curb data run by Coord.

Open Curbs 1 and the online tools provided by Coord provide a digitized, geo-located repository for curb data and allow cities to maintain an inventory of curb resources, allocate and price curb resources, and automatically provided information to fleet operators through a standardized API.

In addition to regulatory information, Open Curbs maps curb-related infrastructure such as wheelchair cuts, bus stops, signage, crosswalks, bike racks, and other physical assets. As of January 2021, Coord reports to have curb information coded for portions of 15 US cities and have released 11 coded data sets under an open database license. The data was collected for the cities by a variety of vendors.

The data exchange format for Open Curbs is geoJSON. A simple example of a curb feature coded in Open Curbs format (in this case, a section of curb painted red) is:

{

  "type": "Feature",

   "properties": {

      "asset_type": "Curb Paint",

      "asset_subtype": "Red",

      "curb_id": "bGE6Njc2Mzk",

      "distance_start_meters": 5.02,

      "distance_end_meters": 13.33

   },

   "geometry": {

     "coordinates": [

        [-118.256495, 34.049384],

        [-118.256549, 34.049324]

     ],

     "type": "LineString"

  },

}

Coord is working with the Open Mobility Foundation’s Curb Management Working Group to develop a uniform agreed standard for curb data, with Open Curbs as an input to the process. CurbLR is a similar effort that is also working with the Open Mobility Foundation.

An additional resource is Coord's website 2 , which describes the curb management and other services they provide.

• 1Coord. (n.d.). Open Curbs. Retrieved January 28, 2021, from github: https://github.com/coordcity/open-curb-assets/blob/master/open-curb-assets-spec.md
• 2Coord. (2020, July 6). Curb Management for Fast-Changing cities. Retrieved from COORD: https://www.coord.com/