Probe data from consumer GPS navigation devices for the analysis of controlled intersections

Probe data from consumer GPS navigation devices provides a network-wide and costefficient data source for measuring vehicle movements, whereas experimental studies have been confined to small datasets. Data collection from road-side sensors can provide similar information but is expensive and requires high maintenance expenditures. This paper presents the results of intersection performance measurement using a large probe dataset from consumer GPS navigation devices. The measurement of delay and turning movements is compared with loop detection traffic counts and delay estimation from stationary sensors in the Dutch city of Delft. Turning movements are measured with an average error of 1.35% to 3.76%. The results show that the data is beneficial for a quick assessment of the delay and turning movements at intersections, especially intersections where data from stationary detectors is not easily accessible