miroslav vujic university of zagreb faculty of transport and traffic sciences zagreb, 10 october...
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Miroslav VujicUniversity of Zagreb
Faculty of Transport and Traffic Sciences
Zagreb, 10 October 2013
CIVITAS-ELAN8.2. Public Transport Priority and
Traveler Information
Presentation overview Measure objectives Implementation process Measure outcomes Lessions learned from the process
CIVITAS-ELAN presentation, Miroslav Vujic
Mesure objectives two key objectives:
improvement of mobility for all vehicles by giving priority at intersections to public transport vehicles
Improvement of public transport system quality in general
What was done? Relevant data collected Micro and macro simulation models
produced Implementation finished Evaluation of implementation
CIVITAS-ELAN presentation, Miroslav Vujic
Mesure objectives – cont. demonstration corridor:
• 3.2km long Savska street
• Connects the historic City centre (north) with south (entrance) of the City
Traffic situation:• bi-directional traffic
• personal vehicles and PT vehicles are operating in one (same) level
CIVITAS-ELAN presentation, Miroslav Vujic
Implementation process – Task No.1• Define PT performance indicators
• PT operation time
• Dwell time
• Intersection delay
• Speed per segment
• Operational speed
• Develop microsimulation model of existing traffic situation for the entire corridor• PTV VISSIM software package
• Build traffic network
• Number and width of lanes
• Signal logic, etc.
• Calibrate developed model according to existing traffic situation
CIVITAS-ELAN presentation, Miroslav Vujic
Implementation process – Task No.2• Develop and define transit priority
algorithms for every signalized intersection on the corridor
• Active priority techniques – detection of vehicles' presence
• Implement defined algorithms in simulation model
• PTV VISVAP module was used for defining and implementing priority algorithms
• Gather simulation results and evaluate benefits of transit priority implementation
• Evaluation based on defined PT performance indicators
CIVITAS-ELAN presentation, Miroslav Vujic
Implementation process – Task No.3 Implementation of PT priority techniques on 3 intersections on the corridor
• Hebrangova Street
• Dezeliceva Street
• Varsavska Street
• Priority technique:• Early green is enabled if PT vehicle is
detected (just northbound)
• Detection zone: 150m before the intersection
• Technical solutions:• Commercial VECOM from Peek Traffic
• Experimental RFID solutionCIVITAS-ELAN presentation, Miroslav Vujic
Measure outcomes• Simulation model results:
• PT priority defined and implemented in simulation on the whole corridor & all intersections
• Main performance indicator: • average PT operation time
8,85%• Not satisfied?!
• Observing time perspective:
• Before: 20,37min
• After: 18,42min
2,28min of benefit – one PT line per one hour!
CIVITAS-ELAN presentation, Miroslav Vujic
Measure outcomes – cont.
CIVITAS-ELAN presentation, Miroslav Vujic
Objectives Needed Achieved
Increase PT avg. speed 2% 6,9%
Decrease avg. running time 4% 7,3%
Decrease intersection delay 3% 17,84%
Decrease no. of vehicles 3% 1,89%
Lessions learned from the process teamwork is essential!
• project leader must define schedules, boundaries and tasks for every researcher and involved partners!
importance of the input traffic data• traffic volumes, queue length, etc. needed
for development of simulation model
• traffic modeling is crucial
better communication and cooperation between partners
CIVITAS-ELAN presentation, Miroslav Vujic
Thank you for your attention!
University of ZagrebFaculty of Transport and Traffic
Sciences
http://www.fpz.unizg.hr
Miroslav VujicDepartment of Intelligent Transport
CIVITAS-ELAN presentation, Miroslav Vujic