【正文】 ak Period 早高峰Absolute speed limit 絕對(duì)速限Abutting property 鄰街建筑物Acceleration Lane 加速車道Access 出入口Access Control 出入管制；進(jìn)出管制Access ramp 出入引道Accessibility 可及性Accident 肇事；事故；意外事件Accident (Crash) Rate 事故率Accident (Crash) Severity 事故嚴(yán)重性Accident Analysis 事故分析；意外分析；肇事分析Accident Assessment 事故鑒定Accident Casualty 事故傷亡Accident Cause 事故原因Accident Characteristics 肇事特性Accident Hazardous Location 易肇禍路段Accident Investigation 事故調(diào)查Accident Prone Location 易肇事地點(diǎn)Accuracy 精度Actual travel time 實(shí)際行駛時(shí)間Adaptive route choice 適應(yīng)性路線選擇Advanced driver information system ADIS 先進(jìn)駕駛員信息系統(tǒng)Advanced Traffic Management Services ATMS 先進(jìn)交通管理服務(wù)Advanced Traveler Information Services ATIS 先進(jìn)路人信息服務(wù)Advanced vehicle control system 先進(jìn)車輛控制系統(tǒng)Aerial Map 航測圖Aerial perspective 鳥噉圖；空中透視Overload, Overloading 超載Air resistance 空氣阻力Alignment Design 路線設(shè)計(jì)；定線設(shè)計(jì)Algorithm 運(yùn)算法則Allday Service 全天候服務(wù)Alley 巷；道Allowable Bearing Capacity 容許承載量Allowable load 容許載重Alternate Method 替代方法Alternative(s) 替代（換）方案American Concrete Institute ACI 美國混凝土學(xué)會(huì)；美國混凝土研究會(huì)American Federal Highway Administration FHWA 美國聯(lián)邦公路總署American Institute of Transportation Engineers ITE 美國交通工程師學(xué)會(huì)American Society of Civil Engineers ASCE 美國土木工程師協(xié)會(huì)Amplification effect放大效應(yīng)Amplifier 擴(kuò)大器Annual Average Daily Traffic, AADT 年平均日交通量Annual budget 年度預(yù)算Annual Traffic 年交通量Appropriate measures 適當(dāng)防制措施Arc 弧線Arrival time 到達(dá)時(shí)間Arterial 主要干道Asphalt, Asphalt Cement, Asphalt Binder 瀝青（美國用語）；瀝青膠泥AtGrade Intersection 平面交叉Advanced traffic management system ATMS 先進(jìn)的交通管理系統(tǒng)；高等交通管理系統(tǒng)Automated toll system 自動(dòng)化收費(fèi)系統(tǒng)Automatic Cargo Identification, ACI 自動(dòng)貨物辨識(shí)Automatic Vehicle Classification, AVC 自動(dòng)車輛分類Automatic Vehicle Identification, AVI 自動(dòng)車輛辨識(shí)Automatic Vehicle Location, AVL 自動(dòng)車輛定位Automatic Vehicle Monitoring, AVM 自動(dòng)車輛監(jiān)視Auxiliary Lanes 輔助車道Average Delay Time 平均延滯時(shí)間Average Waiting Time 平均等候時(shí)間BBalance Cut and Fill 均衡挖填Barrier, Noise barrier, Noise barrier wall 防音墻Birds39。 unloading zone 上下旅客區(qū)段或裝卸貨物區(qū)段Local Area Network, LAN 局域網(wǎng)絡(luò)Logical Architecture 邏輯架構(gòu)Long tunnel 長隧道Longitude 經(jīng)度Longitudinal Drain 縱向排水Longitudinal Grade 縱坡度LongRange Planning 長程規(guī)劃Loop 環(huán)道（公路方面）；回路（電路方面）Lost Time 損失時(shí)間MMacro or mass analysis 匯總分析；宏觀分析Magnetic Levitation Maglev 磁浮運(yùn)輸系統(tǒng)Magnetic loop detector 磁圈偵測器Mainline 主線Management Information System MIS 管理信息系統(tǒng)Manual counts 人工調(diào)查法Marking 標(biāo)線Maximum allowable gradient 最大容許坡度Maximum capacity 最大容量Maximum Density 最大密度Maximum Likelihood Function 最大概似法Maximum Peak Hour Volume 最尖峰小時(shí)交通量Measure of Effectiveness MOE 績效評(píng)估指針Mechanical garage 機(jī)械式停車樓（間）Merge 合并；并流；進(jìn)口匝道；并入Merging area 并流區(qū)域Merging point 并流點(diǎn)Metropolitan Planning Area 大都會(huì)規(guī)劃區(qū)Minimum Grade 最小縱斷坡度Minimum sight triangle 最小視界三角形Minimum turning radius 最小轉(zhuǎn)彎半徑Mixed flow 混合車隊(duì)Mixed traffic 混合車隊(duì)營運(yùn)Mixed traffic flow 混合車流Monitoring 監(jiān)測Monorail 單軌鐵路Mortality 死亡數(shù)Motivation 動(dòng)機(jī)Mountain road 山區(qū)道路Multilayer 多層Multileg Interchange 多路立體交叉Multileg Intersection 多路交叉NNational freeway 國道National System Architecture 國家級(jí)架構(gòu)Natural ventilation 自然通風(fēng)Navigation 引導(dǎo)；導(dǎo)航Net Weight 凈重No left turn 不準(zhǔn)左轉(zhuǎn)；請(qǐng)勿左轉(zhuǎn)No parking 禁止停車Noise barrier, Sound insulating wall 隔音墻Noise pollution 噪音污染Noise sensitive area 噪音敏感地區(qū)Nonhomogeneous flow 不同流向的車流；非均質(zhì)車流Nonskid Surface Treatment 防滑處理Nonsynchronous controller 異步控制器Novelty 新奇性Number of Passengers 客運(yùn)人數(shù)Number of Registered Vehicle 車輛登記數(shù)Nurture room 育嬰室OOccupational Illness 職業(yè)病Off parking