Problem solution for making probe-vehicle data as foundational traffic information source

随着信息和通信技术的发展，从在道路网络上巡航的车辆收集交通信息的探测车系统正引起关注。其中，探测车系统具有许多优点，如可以采集探测车行驶过的所有路段的交通信息，获得车辆加速度、行驶路线等各种信息，但要实现广域探测车系统还需要解决很多问题;作为交通信息的可用性的呈现以及用于利用和有效地收集信息和提供信息的方法的建立。本研究针对上述问题开发并研究了几种技术。首先，为了提供探测车数据作为交通语调的可用性，开发了使用探测车数据的路线引导系统。与导航系统的对比实验结果表明， ...更多信息 目前市场上的各种点火系统显示了探测车数据利用的优越性。此外，通过通勤环境下的路径诱导实验，验证了所开发系统的路径诱导效果。其次，建立了有效利用探测器数据的各种方法。特别是，本研究表明，探测车数据可以使我们分析驾驶员的路径点行为的最后细节，发泄/协调信号控制的效果，识别交通事故的共同地点和探测车数据可以用来更新动态O-D矩阵。此外，本研究还探讨了数据收集效率的提高。在阐明探测器数据采集频率对大规模探测器系统实施有重要影响的基础上，提出了利用非频繁探测器数据的几种技术，并研究了探测器的最优定位问题。本研究的实施解决了大范围探测车系统实现中的诸多问题。少

With the development of the information and communication technology, a probe car system that collects traffic information from the vehicles cruising on the road network is attracting attention. Particularly, probe-vehicle system has many advantages ; e.g. the system can collect traffic information from all road sections where the probe-vehicle cruises, obtain various information such as vehicular acceleration and cruising route, and so on. However, it is necessary for implementation of wide-area probe-vehicle system to solve a lot of problems ; presentation of usability as traffic information and establishment of method for utilization and for effectively gathering information and provision of information. This research developed and investigated several technologies in response to above problems.First, to present a usability of probe-vehicle data as traffic intonation, the route guide system using the probe-vehicle data was developed. The result of competitive experiment with the nav … More igation systems in the market showed the superiority of utilization of probe-vehicle data. In addition, the effect of route guidance of the developed system was shown from the route guidance experiment in commuting situation. Second, various methods for effective utilization of probe-vehicle data were established. Especially, this research showed that probe-vehicle data enables us to analyze drivers' route dots behavior to the last detail, to vent/ the effects of coordinated signal control, to identify the common site of traffic accidents and the probe-vehicle data can be utilized for updating dynamic O-D matrices. Furthermore, this research examined that the efficiency improvement of the data collection. After clarifying that the probe data collection frequency has a significant influence on the implementation of the large scale probe system, several techniques for using infrequent probe-vehicle data were developed and the optimal location .problem of probe-vehicle was studied. A lot of problem for the implementation of a wide-area probe-vehicle system were solved by executing this research. Less