Traffic reporting

Methods of gathering information:
– Professional reporters
– GPS crowdsourcing
– Combination of both methods
– Monitoring police radio frequencies
– Helicopters to overfly accident scenes

Methods of transmitting information:
– GPS units
– Smartphones
– Radio via voice RDS and TA
– Electronic road signs
– 5-1-1 traffic information phone line or similar

Providers:
– Total Traffic & Weather Network
– NAVTEQ
– Tele Atlas (subsidiary of TomTom)
– Google Maps
– Radiate Media (merged with Global Traffic Network forming US Traffic Network)

References:
– Subramanian, Karthik; Srikanth, R. (January 21, 2014). Now, Apps for Live Traffic Feed.
– The Hindu
– RoadPal. Archived from the original on 2019-03-02. Retrieved 2022-07-24.

Traffic reporting (Wikipedia)

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Traffic reporting is the near real-time distribution of information about road conditions such as traffic congestion, detours, and traffic collisions. The reports help drivers anticipate and avoid traffic problems. Traffic reports, especially in cities, may also report on major delays to mass transit that does not necessarily involve roads. In addition to periodic broadcast reports, traffic information can be transmitted to GPS units, smartphones, and personal computers.