Advanced Traffic Management Systems ATMS

Transcription

1 Advanced Traffic Management Systems ATMS

2 Outline The idea ATMS Requirements ATMS multilevel architecture Purpose of ATMS Traffic management capability (TMC) Traffic information capability (TIC) Integration of TMC and TIC Applications VANET Embedded systems in cars

3 Traffic Management System - Idea Traffic Management Road Works Freeways/ highways/tolls Ring Roads Urban Traffic Events Parking Public Transportation

4 ATMS Requirements Control mechanism Sensors Communications Data collection and manipulation Algorithms Maintenance

5 ATMS Requirements Control mechanism Traffic lights Lane signal Visual message system (VMS) Traffic information

6 ATMS Requirements Sensors Loops Cameras Data Images Lasers Radar Vehicle probe data

7 ATMS Requirements Communications Vehicle to Vehicle (V2V) WiFi Bluetooth Vehicle to infrastructure (V2I) WiFi GPRS WiMax

8 ATMS Requirements Data collection and manipulation Collecting though the communication means Preprocessing data Make it understandable Decision support systems Data fusion This case when we have many source of data.

9 ATMS Requirements Algorithms Old generation Time of day Fixed volumes New generation Adaptive Real time volumes Prediction in space and time

10 ATMS Requirements Maintenance Higher level of maintenance than simple infrastructure Question about data size How sparse data should be Insure the good functioning of all the requirements systems

11 ATMS Multi level Architecture Measured data, systems status, etc Strategic level Traffic Management system Tactical Level level Parking guidance system/ Public transport system/ Urban traffic control system/ Freeway management system Strategies, control settings, etc Operative level Cameras Signals Detectors Signs

12 The idea behind ATMS Now Cities run various independent traffic systems No interchange data between most systems ATMS can do ATMS integrates these systems into a single application Traffic Management thereby provides the basis for: (Cross-System Traffic Strategies & Distribution of Traffic Information)

13 What can Traffic Management change in your city? Achieve collaboration & central control of existing, independent traffic subsystems Comprehensively monitor & visualize traffic conditions in real time Provide value-added traffic information services to the public Improve road safety through incident detection & response management Prevent and actively fight congestion by intelligently influencing traffic on the road Demonstrate civil responsibility through a pro-active approach to traffic improvement

14 Traffic management capability

15 Traffic information capability

16 Results of merging (single platform)

17 Integrated Traffic Management & Traffic Information Services Data Collection from different sources Data fusion Data Preprocessing Intelligent processing of traffic data Real time traffic status Traffic forecast Generating services: Broadcasting information to various receivers Customer relation management

18 Applications

19 What is a VANET? Vehicular Ad-hoc NETworks Individual nodes different from traditional wireless nodes No power constraint Nodes mostly mobile Extends existing infrastructure Vehicle-Vehicle Communication Vehicle- Infrastructure Communication

20 VANET

21 A modern vehicle is a computer on wheels Forward radar Event data recorder (EDR) Positioning system(gps ) Communication facility Display - Human-Machine Interface - Navigation system Computing platform Rear radar Processing power: comparable with a Personal Computer + a few dozens of specialized processors Communication: typically over a dedicated channel: Dedicated Short Range Communications (DSRC) In the US, 75 MHz at 5.9 GHz; In Europe, 20 MHz requested but not yet allocated) Envisioned protocol: IEEE p 21 Penetration will be progressive (over 2 decades or so)

22 Your car in the not so far distant future

23 Safety applications : SVA (Stopped or Slow Vehicle Advisor) 23

24 Safety Applications n PCN: V2V Post Crash Notification n EEBL: Emergency Electronic Brake Light n RHCN: Road Hazard Condition Notification n RFN: Road Feature Notification n CCW: Cooperative Collision Warning n CVW: Cooperative Violation Warning

25 Convenance Applications : CRN (Congested Road Notification) 25

26 Convenance Applications n TP: Traffic Probe n TOLL: Free Flow Tolling n PAN: Parking Availability Notification n PSL: Parking Spot Locator

27 Commercial Applications n RVP/D: Remote Vehicle Personalization/ Diagnostics n SA: Service Announcements n CMDD: Content, Map or Database Download n RTVR: Real-Time Video Relay