ce 740 traffic engineering · ptv vissim. is a microscopic multi-modal traffic flow simulation...
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CE 740 – Traffic Engineering
VISSIM Demo Session
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Introduction PTV Vissim is a microscopic multi-modal traffic flow
simulation software package developed by PTV PlanungTransport Verkehr AG in Karlsruhe, Germany.
The name is derived from "Verkehr In Städten - SIMulationsmodell" (German for "Traffic in cities - simulation model").
PTV Vissim was first developed in 1992
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Input data Required to model in Vissim Geometric details Inflow in a link Free flow speed Turning movement in intersection Speed limits Signal timing Pedestrian flow Parking data Simulation timing
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VISSIM window
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(1) Title bar (2) Menu bar (3)Toolbars (4) Network Editors (5) Network objects toolbar, level toolbar and background image toolbar are shown together by default in a window on tabs. (6) Levels toolbar (7) Back-ground tool-bar 8) Project explorer
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VISSIM window
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(9) Lists (10) Quick View (11) Smart Map 12) Status
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Initial settings
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Base data----> Network settings Edit--------> User preference
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Background on which network is drawn Using map Using Background image Set scale
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Creating links and connectors
Create link (See status bar for length) Lane width/No of lanes Generate opposite direction Invert Split link Spline Z offset Connectors8
•Roads in VISSIM are drawn using the link command•Connectors are used to connect two link like inintersection to connect North south link to East west link
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Creating links and connectors
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Creating links and connectors
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Creating links and connectors
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Vehicle input Volume The volume is mentioned in
terms of no. of vehicles per hour
Vehicle composition New vehicle composition Desired speed m/s Relative flow Percentage of car,2w, bus, heavy
vehicle etc
Time intervals Volume in veh/hr for each time
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Vehicle input
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Vehicle input
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VISSIM Simulation settings
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Amount of time the simulation will run
For every simulation second how many times the position will be calculated
For different random seeds the generation of vehicles will vary
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Routes Each wing Relative flow
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Data output (MoE)
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Traffic performance measures of effectiveness is to quantifythe achievement of a project's traffic operations objectives.
For evaluating the traffic operations performance of highwayfacilities
Travel Time Speed Delay Queue Flow Density
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Data output Data collection point
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Thank you
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