A New Approach for Real-Time Traffic Delay Estimation Based on Cooperative Vehicle-Infrastructure Systems at the Signal Intersection

摘要: Confined by the real-time and accuracy of traditional traffic collecting parameters, existing delay estimation models are generally with poor performance in guiding practical applications. In Cooperative Vehicle-Infrastructure System, entire space-time driving state information a single intelligent vehicle provides new data supporting for road status evaluation. Fully extracting value this kind data, paper proposes method based on Webster signalized intersection model. Taking each as benchmark point, arriving/leaving characteristics spatially interpolated stopping small amount vehicles. order to obtain critical queuing dissipation linear fitting is used forecast time further Markov model estimate number vehicles at time. Based characteristics, built according mechanism. The case study shows that, compared model, proposed can effectively improve estimating accuracy.