VISSIM 5.30-05 User Manual

Test of Signal Control without Traffic Simulation
8.2 Test of Signal Control without Traffic Simulation
VISSIM offers the Test function to analyze a signal control logic’s behavior
with various detector call scenarios without actually modeling traffic flows.
Detector calls are generated through
► interactive mouse clicks or
► pre-recorded macros.
The Test function is helpful when debugging a newly developed control logic
especially if it contains only sporadically used functions such as railroad
preemption, PT signal priority or queue “flush-out”. VISSIM discriminates
between the following detector actuations:
Single
Actuation
Repeated
Actuation
Continuous
Actuation
Increasing impulse (vehicle front) and decreasing impulse
(vehicle end) within one second
Increasing and decreasing impulse during every second;
equivalent to a single actuation each second
Single impulse increase; impulse decrease only after explicit
termination of actuation
8.2.1 Interactive Placement of Detector Calls
To place detector calls (actuations) follow the steps outlined below:
1. In VIEW - OPTIONS - [TRAFFIC], activate Individual Vehicles.
2. In VIEW - NETWORK ELEMENTS activate the display of Detectors.
3. If you would like to create a Signal/Detector protocol (cf. section 11.9),
toggle the appropriate options in EVALUATIONS – FILES and/or – WINDOWS.
4. If the sequence of detector actuations is to be stored for later testing of
other control strategies, activate the macro functionality using TEST –
RECORDING.
5. Start the test function with TEST – CONTINUOUS or TEST – SINGLE STEP.
Starts the continuous Test run. F5
Calls the next step in the Single step mode;
Allows also toggling from Continuous to Single Step
mode during the Test run.
6. Activate individual detector calls by clicking:
- Left mouse button: In Single Step mode, switch from no actuation
(black) to single actuation (blue) and to repeated actuation (cyan)
and back to no actuation.
- Right mouse button: Place (as well as terminate) a continuous
actuation (purple).
User Manual © PTV AG 2011 457
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