ESTIMATE OF THE FACULTY OF ROAD AND A METHOD TO FORM THE PROGRAM OF ROAD NETWORK PROVISION

本文研究了一种形成路网供给方案的方法，具体方法如下：1。提出了用随机用户均衡的出行时间可靠性概念来表示道路为可变需求提供稳定交通服务的能力的方法。建立了一个函数来估计作为城市道路网络服务于城市活动的道路的各种功能。提出了预算条件、高阶规划调整、区域发展平衡等约束条件的形成与处理方法。4 .通过与遗传算法（GA）的估计进行比较，提出了一种高效、准确的求解程序，以系统地生成备选路网并收敛到最优解。将该方法应用于某市实际城市路网规划中，求解了工程期内的最优解。通过与经验丰富的工程师经验编制的备选方案的比较，表明了该方法的实用性和有效性，同时也表明了其局限性和存在的问题。在国际学术研讨会上作报告，与国内外研究人员进行交流。把研究结果整理成一份报告

We carried out the study on a method to form the program of road network provision as follows :1.Made the method to represent the faculty of road to provide stable traffic service for variable demand as the concept of the reliability of travel time by stochastic user equilibrium.2.Made a function to estimate various faculties of road taking service for the activities of the city as an urban road network.3.Made the formation and the means to deal with constraint conditions, such as budget conditions, adjustment with higher rank planning and the balance of regional development.4.Made an efficient and accurate solution procedure to make alternative road network systematically and to converge to the optimum solution, comparing with their estimation through the application of genetic algorithm(GA).5.Applied the method to the practical urban road network planning in a city, and solved the optimal solution in project period. Comparing the solution with an alternative program, which was made empirically by experienced engineer, made clear the practicality and validity of the method, also the limits and problems.6.Made presentation in an international symposium, and took exchange of views with home and foreign researchers.7.Worked up the result of the study into a report.