主要探讨支持向量机理论在路段行程时间预测中的应用。
Application of theory of support vector machine for forecasting link travel time is discussed.
路段行程时间的估计和预测是诱导系统的关键技术之一。
The estimation and prediction of road travel time is one of the key technologies for the route guidance system.
动态路段行程时间的预测是ITS动态最短路线选择的关键技术之一。
The estimation of dynamic road travel time is one of the key technologies for the dynamic choice of the shortest path in ITS.
由于路网参数不断变化，路段行程时间的估计必须满足实时性的要求。
Because the (parameters) of the road net are variable, the estimation of link travel time should satisfy the real-time requirement.
基于现有路段行程时间可靠性概念的局限性，提出新的路段行程时间可靠性定义。
According to the limitations analysis for the conception of present travel time reliability, it was defined in this paper.
在相应假设的前提下，计算了路段行程时间可靠性，继而推广到路径的行程时间可靠性。
Under corresponding assumptions, link travel time reliability is calculated and further extended to the calculation of route travel time reliability.
路段行程时间的预测是所有预测的基础，路线行程时间的预测主要针对给定的路线进行时间耗费的计算。
The forecast of route travel time is the base of all the forecasts, and aimed at computing the used time on the given path.
根据对实际交通状况的分析，将路段行程时间分为三个部分，即自由行驶时间、排队等待时间和通过交叉口时间。
According to the analysis on the actual traffic status, the whole road travel time is divided into three parts; free travel time, queue waiting time and passing intersection time.
该算法通过在每个时段把车流分配至边际行程时间最小的路段上，从而最小化交通系统内车辆的总运行时间。
The algorithm is to minimize total travel time in the whole network by assigning traffic flow to links that have the lowest marginal link travel time at every time period.
考虑路段相关的行程时间可靠性应用于实际路网路径选择，可以增加选择的合理性和准确性，实现安全、可靠、高效运营。
If the travel time reliability is applied to route choice in road network, the accuracy and rationality of selection would be increased realizing safety, reliability and efficient operation.
将OD交通量和路段通行能力作为离散随机变量，基于用户平衡分配模型，用近似算法求解行程时间可靠性。
Od demands and link capacities are treated as discrete random variables. Based on user-equilibrium traffic assignment model, an approximating algorithm is used to estimate the travel time reliability.
对利用出租车GPS数据估计路段平均行程时间的方法进行了研究。
An approach to estimate the average link travel time (ALTT) using taxi GPS data was developed.
对利用出租车GPS数据估计路段平均行程时间的方法进行了研究。
An approach to estimate the average link travel time (ALTT) using taxi GPS data was developed.
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