ICS03.220 R85DB4401 广州市地方标准 DB4401/T57—2020 代替DBJ440100/T164—2013 城市道路交通运行评价指标体系 Urbanroadtrafficperformanceindex 2020-06-08发布 2020-07-01实施 广州市市场监督管理局发布 DB4401/T57—2020 I目次 前言.....................................................................................................................................................................Ⅲ 1范围.................................................................................................................................................................1 2规范性引用文件.............................................................................................................................................1 3术语和定义.....................................................................................................................................................1 4缩略语.............................................................................................................................................................2 5评价指标体系.................................................................................................................................................2 5.1总则.........................................................................................................................................................2 5.2路段权重系数.........................................................................................................................................2 5.3路段平均行程速度.................................................................................................................................3 5.4加权平均速度.........................................................................................................................................3 5.5道路交通运行指数.................................................................................................................................3 5.5.1计算方法.........................................................................................................................................3 5.5.2计算步骤.........................................................................................................................................3 5.5.3道路交通运行指数等级划分.........................................................................................................4 5.6拥堵里程比例.........................................................................................................................................5 5.7拥堵持续时间.........................................................................................................................................5 5.8常发拥堵路段数.....................................................................................................................................5 5.8.1常发拥堵路段分类.........................................................................................................................5 5.8.2常发拥堵路段数计算方法.............................................................................................................5 5.9路网稳定性指数.....................................................................................................................................5 5.9.1计算方法.........................................................................................................................................5 5.9.2计算步骤.........................................................................................................................................6 5.9.3稳定性指数等级划分.....................................................................................................................6 附录A（资料性附录）广州市高峰时段的划分.............................................................................................7 附录B（规范性附录）VKT比例计算方法.......................................................................................................8 附录C（资料性附录）道路网拥堵里程比例与TPI的推荐转换关系.......................................................10 附录D（资料性附录）路网高峰时变稳定性系数与NSI的推荐转换关系...............................................11 参考文献................