Travel-time estimation using cross-correlation techniques

D. J. Dailey

Transportation Research Part B: Methodological, 1993, vol. 27, issue 2, 97-107

Abstract: This paper demonstrates the viability of using cross-correlation techniques with inductance loop data to measure the propagation time of traffic. The propagation time between loops separated by 0.5 miles is measured by using time-average activation counts ("volume") from inductance loops. The resulting time delay is used to estimate the mean speed. This independent speed estimate can be used to improve the volume/occupancy ratio estimate of speed from single loops.

Date: 1993
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