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The Journal of The Korea Institute of Intelligent Transport Systems Vol.7 No.5 pp.13-25
GPS수신정보에 의한 구간통행속도 예측 알고리즘 비교평가
Evaluation of the Estimate Algorithms for Link Travel Time from GPS Probe Data
Abstract
This study analyzed errors of data received from GPS which showed different reception characteristics based on chipset at poor reception area. The digital map made from National Police Agency shows 4% errors of length on the average. The comparison of three different algorithms - Average Spot Speed, Cumulative Travel Length from GPS with Actual Travel Time, Travel Length from Digital Map with Actual Travel Time have been conducted to find significant difference estimating travel time from GPS Data. The algorithm to estimate travel time from travel length and travel time showed the most reliable results from the others.
