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In transportation networks, traditional fixed sensors are used to monitor the operation of transportation systems. However, fixed sensors cannot move once they are installed. In this paper, the motion ability of traffic sensors is introduced to improve the performance of transportation network surveillance. A mobile traffic sensor routing problem is proposed, modeled as a novel vehicle routing problem...
In this paper, we study a re-entrant line with unreliable exponential machines and finite buffers, operating under last buffer first serve scheduling policy. First, an approximation method is presented to estimate the throughput of the re-entrant line. Then, a system approach to identify bottleneck based on blockage and starvation information is proposed. It has been shown that the approximation method...
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