lec4 - AN INTRODUCTION TO INTELLIGENT TRANSPORTATION...

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AN INTRODUCTION TO INTELLIGENT TRANSPORTATION SYSTEMS 1.212 SPRING 2005 Professor Joseph M. Sussman Mon/Wed 2:30-4:00 BLOCK 2 (Lectures 4, 5, 6, 7) ADVANCED TRAVELER INFORMATION SYSTEMS February 14, 2005 and forward SPEAKER : Joseph M. Sussman MIT
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BLOCK 2 ADVANCED TRAVELER INFORMATION SYSTEMS Micro-Schedule Lecture Date Topic 4 2/14/05 Basic ATIS Concepts 5 2/16/05 ATIS (continued) 6 2/22/05 Visit to SmartRoute (Tuesday) Systems 7 2/23/05 ATIS (continued) 8 2/28/05 Intro to ATMS 9 3/2/05 Consumer Response to ATIS (Jane Lappin, Sean Pierce -- Volpe National Transportation Systems Center)
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THE QUESTIONS IN ATIS ± It ATIS a positive or a negative for ATMS? ± How do we gather data about traffic flows? ± State of knowledge about the system ± How do we process it into information useful to travelers? ± How do we disseminate the information to travelers? ± Of what value is the information?
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D. Florian, TPP, “Simulation-based Evaluation of Advanced Traveler Information Services (ATIS)” Travel Time (minutes) baseline Unequipped drivers Equipped Drivers 0% 20% 40% 60% 80% 100% % of Drivers Equipped with ATIS
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HOW DO WE GET GOOD DATA ABOUT THE STATE OF THE NETWORK? ± First Generation ± Helicopters -- visual observations, timeliness? ± Second Generation ± Traffic sensors in the road (inductive loops) ± Simply sense the presence or absence of a vehicle ± Third Generation ± Roadside infrastructure combined with in- vehicle transponder ± Sense a particular car ± Fourth Generation ± Cell phones ± GPS
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ATIS ± Information to various travelers ± Auto ± Transit ± Freight ± Why do you want it? To improve your LOS in using the transportation system ± Travel time ± Reliability ± Costs ± Comfort ± Safety ± Security So, what information do you want?
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WHAT INFORMATION DO TRAVELERS WANT? ± Static ± Routes ± Schedules (as printed) ± Dynamic ± Traffic conditions ± Route - Real-time ± Real-time transit schedules ± Construction sites ± Incidents ± Weather (rural areas) ± Parking lot availability
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Tabl e 5-1 Pote ntial Con te nts of A TIS Source : Developing T rave ler Info rmat ion S ystems Using the Nat ional ITS Ar chite ctu re (Wash ington, D.C.: U. S. De pa rt m ent of Transpo rt ati on, 19 98, p p. 2 -3 an d 2-4) Plann ed c on s truction and m ainte nan ce ac tivities Special events, such a s parades and sporting e vents Toll cost s a nd p ayme nt options Inte rmo dal co nne ct ions Comme rcial vehicle regu lation s, su ch as haz mat an d h eigh t an d weigh t restr iction s Parkin g locat ions and costs Bus iness list ing s, such as h ote ls and g as stat ions Tou rist de stin at ions Static info rm ation -- kno wn in advanc e, chang es in freq uent ly Navigational instructions Roadwa y co nd itions , including co ng estion and in cide nt inf orma tion Alte rn ate route s Road weather conditions, such as snow and fog Trans it sch ed ule adherence Parkin g lot space a vailability Travel tim e Real-tim e information, which fre qu ently Ide nt ificat ion o f ne xt sto p on tr ain o r bus
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This note was uploaded on 12/06/2011 for the course ESD 1.221j taught by Professor Josephsussman during the Fall '04 term at MIT.

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lec4 - AN INTRODUCTION TO INTELLIGENT TRANSPORTATION...

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