A University of Michigan study, commissioned by TomTom and published on Monday, has benchmarked real-time traffic systems from TomTom, Google, INRIX and Nokia HERE (on a Garmin device).
The University of Michigan Transportation Research Institute (UMTRI) undertook a ‘jam hunt analysis’, using six popular mobile apps and GPS devices to analyze the accuracy in reporting traffic congestion and incident data.
The following devices were used:
– TomTom PND: GO LIVE 2535M
– Garmin PNDs: Nuvi 1690 (SIM), Nuvi 3490 (HD), Nuvi 1695 (SIM) and Nuvi 3590 (HD), all using Nokia’s HERE Traffic
– TomTom App: Version 1.14
– Google App: Version 1.1.6
– Inrix App: Version 4.5.1
The “jam hunt analysis“ was performed by two test vehicles equipped with all of the navigation devices and apps. Each vehicle then drove through a total of approximately 165 traffic jams. The information reported on each system was recorded on video and coded into statistics on the accuracy of each real time traffic service.
“By driving through the same traffic jams with each device simultaneously, our study identified the accuracy of each GPS system in reporting congestion, with varying results across the board,” said Bruce M. Belzowski, Assistant Research Scientist from the University of Michigan. “Overall, TomTom’s device and app reported the most accurate traffic information.”
The results can been seen in the table below (full report available at the end of the article).