大型公园和绿地周边支路断面设计方法研究

大型公园和绿地周边支路除需满足公园、绿地以及周边地块交通集散的基本服务功能外，还需满足节假日等高峰期为市民提供临时停车和应急疏散等辅助功能需求。大型公园和绿地周边支路断面的设计方法，可通过开展规划前期调研，分析交通出行特征来确定道路功能定位和需求；然后对设计年限内机动车、非机动车和行人的工作日、节假日或特殊活动日进行交通流量预测，再进行路段通行能力分析和服务水平评价，从而确定车道数和宽度规模，拟定断面各技术标准和参数；最后提出断面多方案比选，经技术、经济等综合分析后确定最终方案。

Research on Design Method of Branch Road Sections around Large Parks and Greenbelts

In addition to meet the basic service functions of the park, the greenbelt and the surrounding plots, the surrounding branch roads of large parks and greenbelts also need to meet the auxiliary functional demands of providing the temporary parking and emergency evacuation for the citizens during peak periods such as holidays. The design method for the cross sections of large parks and greenbelts can be achieved by carrying out the preliminary planning research, analyzing the traffic characteristics, determining the road functional positioning and requirements, and then predicting the traffic flow in the working days, holidays or special activity days of motor vehicles, non-motored vehicles and pedestrians within the design period. Furthermore, the traffic capacity of road section is analyzed and the service level is evaluated to determine the number and width scale of the lanes and to propose the technical standards and parameters of each section. Finally, many schemes of the sections are compared and selected. The finally scheme is determined after the comprehensive analysis on the technology and economy.