accessibility可达性accidentrate事故率approach进口arterial主干线Automatedtollcollection自动收费average annual daily traffic，AADT年平均日交通量average annual weekday traffic，AAWT年平均工作日交通量Bottleneck瓶颈路段calibration标定Capacity通行能力Centerlines中心线commute通勤control delay控制延误cordon count境界线交通量调查critical density临界密度critical speed临界速度cross-section横断面Crosswalk markings人行横道线curb路缘石curb parking路边停车Cycle time周期时间daily traffic日交通量decision sight distance决策视距delay延误Delineator反光路标Density密度design Hourly Volume , DHV设计小时交通量destination讫点directional design hour volume, DDHV有方向性的设计小时交通量diverging分流downgrade下坡driveway私人车道DUI (driving under the influence)饮酒驾驶DWI (driving while intoxicated)醉酒驾驶Entranceramp驶入匝道equivalent当量Fatality rate死亡率FFS: free-flow speed自由流速度field of vision视野Flashing beacon闪光路标floating car流动车forced flow强制流Freeway高速公路full control of access全控制出入Functional design功能设计FVS: fraction of vehicles stopping停驶车辆比例gap车辆时距geometric design几何设计grade纵坡度Guide signs指示标志headway车头时距High Occupancy Vehicle (HOV) Lane高乘载率车道Highway公路horizontal alignment平面线形horizontal curve平曲线hourly volume小时交通量Inductive loop detector感应线圈Intelligent Transportation System智能运输系统interchange互通式立体交叉Intergreen绿灯间隔Interrupted flow间断流Intersection平面交叉口jam density阻塞密度land use土地利用Lane车道lane group车道组Lane lines车道线Level-of-Service: LOS服务水平Link线路local traffic境内交通Longitudinal markings纵向标线marking标线median中央隔离带merge area合流区merging合流mobility通畅性Mode choice方式选择Mode split方式划分motor vehicle机动车motorcycle摩托车multilane highway多车道公路Node节点Object markers物标occupancy（车道）占有率或（车辆）满载率offset相位差off-street garage路外停车库off-street lot路外停车场One-way street单行道On-...
