A generalized sensor location model for the estimation of network origin-destination matrices

作者：Hu Shou Ren^*; Liou Han Tsung

来源：Transportation Research Part C: Emerging Technologies , 2014, 40: 93-110.

DOI：10.1016/j.trc.2014.01.004

• Network sensor location problem
• Origin-destination (O-D) demand estimation
• Heterogeneous traffic information
• Link-flow estimator

This study examined the network sensor location problem by using heterogeneous sensor information to estimate link-based network origin-destination (O-D) demands. The proposed generalized sensor location model enables different sensors' traffic monitoring capabilities to be used efficiently and the optimal number and deployment locations of both passive- and active-type sensors to be determined simultaneously without path enumeration. The proposed sensor location model was applied to solve the network O-D demand estimation problem. One unique aspect of the proposed model and solution algorithms is that they provide satisfactory network O-D demand estimates without requiring unreasonable assumptions of known prior information on O-D demands, turning proportions, or route choice probabilities. Therefore, the proposed model and solution algorithms can be practically used in numerous offline transportation planning and online traffic operation applications.

• 出版日期2014-3