Service Description: District 1 Lighting Risk for Roadway Segments - To prioritize locations for lighting improvements, roadway segments are assigned a risk score based on selected nighttime crash metrics, for FDOT-managed roadways in District 1.
Service ItemId: 2c545e8e3ef543a4b88cc9f3a016eac0
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: True
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Description: District 1 Lighting Risk for Roadway Segments - A custom python toolbox developed by JMT is used in ArcGIS Pro to determine a lighting risk score along roadway segments. The risk score is first calculated for roadway segments as determined by the following criteria: percent of nighttime crashes, percent of pedestrian and bicycle nighttime crashes, night-to-day crash rate ratio, nighttime crash density, and a nighttime crash rate, based on available crash data for 2015-2019. The initial short segments are then combined to form longer segments, with a risk score based on contributing segment risk scores weighted by length. The number of daytime crashes, nighttime crashes, nighttime pedestrian and bicycle crashes, and total crashes are additionally attributed for the resulting segments. This layer is comprised of the long segments.
This countermeasure analysis result layer and JMT-managed source data layers are to be updated by JMT only upon request of District 1 stakeholders. Source datasets for the analysis include District 1 Signalized Intersections (produced by JMT with data provided by District 1), FDOT Roadways, AADT, On System, Interstates, Intersections; and Crash Data from 2015-2019. Note that the FDOT-managed source data used in the analysis was downloaded from FDOT's TDA website in file geodatabase format by JMT in May 2022; thus the currently displayed FDOT-managed layers may be out of sync with the analysis source data.
Contact: JMT Technology Group: Mallory Gill, mgill@jmttg.com, (757-552-1099)
Published May 2022
Copyright Text: FDOT, District 1, JMT
Spatial Reference: 26917 (26917)
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Spatial Reference: 26917 (26917)
Full Extent:
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Spatial Reference: 26917 (26917)
Units: esriMeters
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