RTPO OVRDC Sidewalk Import

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This import is in support of an initiative to widen the OSM-based pedestrian network to include cities within the area under the jurisdiction of the Regional Transportation Planning Organisation (RTPO) known as Ohio Valley Regional Development Commission (OVRDC). The RTPO region includes 12 southern Ohio counties: Adams, Brown, Fayette, Gallia, Highland, Jackson, Lawrence, Pike, Ross, Scioto and Vinton. You can read more about our program at our website [1].

Import Plan Outline

OVRDC will generally follow the outline as proposed here - Proposed features/sidewalk schema.


The goal is to improve the mapping of the pedestrian network within the RTPO region by importing sidewalk data collected by OVRDC. The data is high quality and covers such a large area that it would be extremely time-intensive to match through individual mapping.

Within the RTPO region there is a considerable need to import data due to the lack of data available within this region on OpenStreetMap. By importing OVRDC sidewalk data the map will improve significantly and encourage others within the RTPO region to contribute as well. This source containing sidewalk data would also be able to assist in the creation and development of routing tools to help assist those with limited mobility and needs for safe travel.

We plan to import pedestrian data, defined as: crosswalk, cycleway, and footway. The import data will be limited to the cities containing any crosswalks, cycleways, and footways within the RTPO region in order to address the lack of data available.


We would like to complete the initial import by the end of March, 2017. Imports of additional cities and villages in the region will be ongoing.

Import Data


We will be working with data collected and maintained by OVRDC.

Data source site:https://www.ovrdc.org/apps/osm-sidewalk-project.html - Initial test case.
Data license: Public Domain
Type of license (if applicable): Public Domain
Link to permission (if required):
OSM attribution (if required):
ODbL Compliance verified:

OSM Data Files

Note - GeoJSON seem to loose the snapped points, duplicating nodes. Use this as a reference only. We will be using shapefiles imported to JOSM and merged to OSM for uploading.

GeoJSON Format: https://www.ovrdc.org/apps/assets/data/sidewalk-study/sidewalks_wch_12_02_16.geojson

Import Type

Shapefiles imported to JSOM, merged, validated, then uploaded.

Data Preparation

Data Reduction & Simplification

Shapefiles have been simplified to the extent that is possible to maintain validity.

Tagging Plans

highway=footway + footway=sidewalk




Brick = "paving_stones"

Crushed Limestone = "fine_gravel"

No nodes on crossings.

Changeset Tags

OVRDC RTPO Sidewalks??

Data Transformation

Describe the transformations you'll need to conduct, the tools you're using, and any specific configurations or code that will be used in the transformation.

We are importing shapegiles into JOSM, merging with OSM data, and using the built-in validation tools to look over any errors. Topology has been completed in ArcMap.

Data Transformation Results

Data Merge Workflow

Team Approach

We are working on this as a team of revolving interns under a Transportation Planning Coordinator at OVRDC in cooperation with the Ohio Department of Transportation (ODOT).



Detail the steps you'll take during the actual import.

Information to include:

  • Collect sidewalks via ortho imagery (Ohio OSIP) and field collection
  • Create and validate topology using ArcMap
  • Consult with local officials on the results of the field/ortho mapping
  • Consult with OSM Community via listserv and web maps
  • Validate shapefiles to OSM using JOSM
  • Merge with OSM data using JOSM
  • Upload
  • Changeset size policy - none as of yet
  • Revert plans - none as of yet


We would like to use NGA's Hootenany software, available here - https://github.com/ngageoint/hootenanny - but need to actually get it up and running first. A OSM hosted hootenany instance would be amazing! For now we are using JOSM and eliminating any conflicts on our side. For example, we decided not to include a bikepath we collected, as it is already in OSM, and conflating it would be too time consuming.