Benefit

Crowdsourced data can be timelier than agency-generated data enabling TMCs to respond to minor incidents and developing congestion 3 to 16 minutes sooner.

The I-95 Corridor Coalition (ICC) compared the average length of time Waze reported an event before the same event was reported by state departments of transportation in three states.


07/01/2019


Summary Information

Crowdsourced incident and congestion data is any such data willingly and intentionally generated and reported by members of the public who get something in return for their contributions. Crowdsourced data can be timelier than agency generated data due to the higher probability of travelers coming across an incident or encountering congestion than an agency detecting it via its sensors, cameras, and field patrols.

A study conducted by the I-95 Corridor Coalition (ICC) compared the amount of time it takes for events to appear within the Waze data feed as compared to the time it takes for an agency to detect and report the same event. The findings below show the average length of time between Waze and a DOT reported events. (includes events in California, Florida, and Virginia).

Comparison of Waze versus department of transportation event reporting
Type of EventAverage Time a Waze Event was Reported before DOT ReportingPercentage of All Waze Events that Were Included in the DOT's ATMS Logs
Freeways/Ramps Crashes3 Minutes40 percent
Primary/Secondary Crashes3 Minutes12 percent
Freeways/Ramps Disabled Vehicles14 Minutes37 percent
Primary/Secondary Disabled Vehicles16 Minutes4 percent
ATMS = advanced transportation management system. DOT = department of transportation.

The findings suggest that crowdsourced data can be timelier than agency-generated data enabling TMCs to respond to minor incidents and developing congestion 3 to 16 minutes sooner.

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Source

Considerations of Current and Emerging Transportation Management Center Data

Author: Pack, Michael; Nikola Ivanov; Jocelyn Bauer; and Elizabeth Birriel

Published By: USDOT Federal Highway Administration

Source Date: 07/01/2019

Other Reference Number: FHWA-HOP-18-084

URL: https://ops.fhwa.dot.gov/publications/fhwahop18084/index.htm

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Goal Areas

Safety
Mobility

Typical Deployment Locations

Statewide

Keywords

None defined

Benefit ID: 2020-01437