ITS 系统发展趋势课件

1、ITS 系统发展趋势1IntroductionThe planning aspects of transport engineering relate to urban planning, and involve technical forecasting decisions and political factors.Human factors are an aspect of transport engineering, particularly concerning driver-vehicle interface and user interface of road signs, si

2、gnals, and markings.Technical forecasting of passenger travel usually involves an urban transportation planning model, requiring the estimation of trip generation (how many trips for what purpose), trip distribution (destination choice, where is the traveler going), mode choice (what mode is being t

3、aken), and route assignment (which streets or routes are being used).More sophisticated forecasting can include other aspects of traveler decisions, including auto ownership, trip chaining (the decision to link individual trips together in a tour) and the choice of residential or business location (

4、known as land use forecasting).Transportation engineering, as practiced by civil engineers, primarily involves planning, design, construction, maintenance, and operation of transportation facilities. Operations and management involve traffic engineering, so that vehicles move smoothly on the road or

5、 track. Older techniques include signs, signals, markings, and tolling. Newer technologies involve intelligent transportation systems (ITS), including advanced traveler information systems (such as variable message signs), advanced traffic control systems (such as ramp meters), and vehicle infrastru

6、cture integration. What is ITS?智慧型運輸系統(ITS, Intelligent Transportation System)乃是應用先進的電子、通信、資訊與感測等技術，以整合人、路、車的管理策略，提供即時(real-time)資訊以增進運輸系統的安全、效率及舒適性，同時也減少交通對環境的衝擊。78Congestion reduces efficiency of transportation infrastructure and increases travel time, air pollution, and fuel consumption.Road oper

7、ators, infrastructure, vehicles, their drivers and other road users will cooperate to deliver the most efficient, safe, secure and comfortable journey. The vehicle-vehicle and vehicle-infrastructure co-operative systems will contribute to these objectives beyond the improvements achievable with stan

8、d-alone systems.為什麼要發展ITS交通擁擠交通事故能源消耗空氣汙染11運輸需求大幅增加，道路建設緩不濟急，交通擁擠造成運輸機動性與經濟生產力的降低。車禍死傷嚴重，造成龐大的社會成本與負擔。公路運輸過度消耗石油能源，造成國家整體資源分配的不均衡。大量的汽、機車排放廢氣，威脅大自然與環境的永續發展。ITS目標增進交通安全(減少交通事故，提昇行車安全)降低環境衝擊(減少空氣、噪音污染，提高能源使用效率)改善運輸效率(降低交通擁擠，提高運輸機動性)提昇經濟生產力(促進相關產業發展，增加就業機會)12Further, ITS can play a role in the rapid ma

9、ss evacuation of people in urban centers after large casualty events such as a result of a natural disaster or threat. Much of the infrastructure and planning involved with ITS parallels the need for homeland security systems.In the developing world, the migration of people from rural to urbanized h

10、abitats has progressed differently and supported by a multimodal system of walking, bicycle transportation, motorcycles, buses, and trains. 15九大服務領域17執行架構18The success of ITS is heavily dependent on the availability of timely and accurate estimates of traffic conditions. The needed system is to util

11、ize advanced traffic models to analyze data, especially real-time traffic data, from different sources to estimate and predict traffic conditions so that proactive (前瞻性) Advanced Traffic Management Systems (ATMS) and Advanced Traveler Information Systems (ATIS) strategies can be implemented to meet

12、various traffic control, management, and operation objectives. 先進交通管理系統(Advanced Traffic Management Systems, ATMS)ATMS為智慧型運輸系統(ITS)的核心與基礎。利用偵測、通訊及控制等技術，將交通監控所得之交通狀況，經由通訊網路傳輸到控制中心，制定及評估交通控制策略，執行整體性的交通管理。相關資訊傳送給用路人與相關道路管理單位，以達到運輸效率最大化及運輸安全之目的。20Active traffic management (ATM), also known as managed la

13、nes or smart lanes, is a scheme for improving traffic flow and reducing congestion on motorways. It has been implemented in several countries, including Germany, the United Kingdom, and the United States. It makes use of automatic systems and human intervention to manage traffic flow and ensure the

14、safety of road users.交通管理功能與其他各功能間的關係 22ATMS之相關技術電腦交通號誌匝道儀控事件自動偵測動態交通預測自動車輛定位可變訊息標誌地理資訊系統行進間測重自動車輛分類電子式自動收費自動車輛辨識最佳路線導引2425Many ETC systems use transponders like this one to electronically debit the accounts of registered cars without their stoppingNorway now has 25 toll roads operating with electro

15、nic fee collection (EFC), as the Norwegian technology is called (see AutoPASS). In 1995, Portugal became the first country to apply a single, universal system to all tolls in the country,電子式自動收費28Automated vehicle identificationSome early AVI (Automated vehicle identification) systems used barcodes

16、affixed to each vehicle, to be read optically at the toll booth. Optical systems proved to have poor reading reliability, especially when faced with inclement weather and dirty vehicles.Most current AVI systems rely on radio-frequency identification, where an antenna at the toll gate communicates wi

17、th a transponder on the vehicle via Dedicated Short Range Communications (DSRC).High occupancy toll lanesHigh occupancy toll lanes (HOT lanes) is a road pricing scheme that gives motorists in single-occupant vehicles access to high-occupancy vehicle lanes (or HOV lanes). Typically, these tolls incre

18、ase as traffic density and congestion within the tolled lanes increases, a policy known as congestion pricing. The goal of this pricing scheme is to minimize traffic congestion within the lanes.Cordon zones with congestion pricingThe main objective of this charge is to reduce traffic congestion with

19、in the cordon area. This fee or toll is charged automatically using electronic toll collection or automatic number plate recognition, since stopping the users at conventional toll booths would cause long queues, long delays, and even gridlock (市區交通大堵塞).Congestion pricing gantry at North Bridge Road,

20、 Singapore.Cordon zones (管制區) have been implemented in Singapore, Stockholm, and London, where a congestion charge or fee is collected from vehicles entering a congested city center.Variable speed limitsVariable speed limits which change with road congestion and other factors. Typically such speed l

21、imits only change to decline during poor conditions, rather than being improved in good ones.Example variable speed limit sign in the United States.Emergency vehicle notification systemsThe in-vehicle eCall is an emergency call generated either manually by the vehicle occupants or automatically via

22、activation of in-vehicle sensors after an accident. When activated, the in-vehicle eCall device will establish an emergency call carrying both voice and data directly to the nearest emergency point. The minimum set of data contains information about the incident, including time, precise location, th

23、e direction the vehicle was traveling, and vehicle identification.Cooperative systems on the roadCommunication cooperation on the road includes car-to-car, car-to-infrastructure, and vice versa. Data available from vehicles is acquired and transmitted to a server for central fusion (結合) and processi

24、ng. This data can be used to detect events such as rain (wiper activity) and congestion (frequent braking activities). The goal of cooperative systems is to use and plan communication and sensor infrastructure in order to increase road safety. 先進用路人資訊系統(Advanced Traveler Information Systems, ATIS)AT

25、IS係藉由先進資訊、通訊及其他相關技術，提供旅行者必要之資訊。使其能於車內、家裡、辦公室、車站等地點方便地取得所需之資訊，作為旅次產生、運具與路線選擇之決策參考，以順利到達目的地。36ATIS之相關技術可變訊息標誌公路路況廣播全球衛星定位系統地理資訊系統車內顯示系統最佳路線導引無線電通訊電視路況報導、電傳視訊旅行服務資訊整體服務數位網路37可變訊息標誌(Changeable Message Signs, CMS)可變訊息標誌乃是一種可程式化的交通管理設施，其透過文字或圖形符號來傳達各項動態的控制或警告訊息給道路使用者，藉以增進道路使用率，並減低意外事故。當其應用於高速公路時，主要在顯示前方交通

26、管制或警告、一般狀況以及宣導等訊息。38CMS常顯示內容39CMS常顯示內容40先進公共運輸系統(Advanced Public Transportation Systems, APTS)先進大眾運輸系統(APTS)係將先進交通管理系統(ATMS)、先進用路人資訊系統(ATIS)與先進車輛控制及安全系統(AVCSS)之技術應用於公共運輸，以改善公共運輸服務品質，提高營運效率，增加公共運輸之吸引力。 APTS服務項目:路徑中大眾資訊大眾運輸系統管理個人大眾運輸大眾運輸旅行安全41APTS之相關技術包括自動車輛監視（Automatic Vehicle Monitoring, AVM）自動車輛定位（

27、AVL）雙向無線電通訊電子式自動付費（Electronic Fare Payment, EFP）最佳路線導引公車電腦排班公車電腦輔助調度車內顯示系統42APTS系統架構圖優先號誌資訊查詢站同質單位：北市交控中心異質單位：公車、鐵路、捷運、飛航管理單位TMIC之公車營管中心交通資訊站TCIS路側子系統RSU2.廣域WAN1.區域LAN信號柱無線通訊業者車輛子系統(OBC)聯外子系統(ISP)中心子系統3.短距無線通訊DSRC3.短距無線通訊DSRC4.長距無線通訊WAC4.長距無線通訊WAC2.廣域WAN5.廣域WAN公司、家戶DesktopWAPPDA聯外子系統其他用路人子系統智慧型公車站牌公車車載電腦定位承載率行車記錄交通資訊接收到站訊息交通資料庫優先號誌策略資料融合資料交換定位資料WEB伺服43APTS運作示意簡圖44目前應用APTS通訊系統之規劃公車站牌動態資訊顯示 車上資訊顯示公車定位輔助 車隊運作與管理 大眾運輸旅行安全系統 45先進車輛控制及安全系統(Advanced Vehicle Control and Safety Systems, AVCSS)AVCSS係結合感測器、電腦、通訊、電