Screenshots

Here are some Screenshots from the VS-WorkSuite.

Controller topology, lists and relations

Signal groups

  • Choose "new" on the right list (right-click) after having selected "Signal groups" on the left list.
  • Give the numbers of different signal heads. They can be modified after-wards, including adding and deleting. 
  • Define Name, Type, tMinGreen, tMinRed, tGR

Detectors, parallel

Parallel detectors are physical detectors connected to the controller by cables: 1 input per detector.

  • Choose "new" on the right list (right-click) after having selected "Detectors, parallel" on the left list. 
  • Give the numbers of the next group of detectors to be created. Additional groups can be created from within the panel.
     
     

Detectors, serial

Serial detectors are logical detectors extracted from a PT detection system. This example does not use serial detectors.

Conflict matrix

  •  Set an "X" on each conflict by clicking on a white field.

Phase change matrix

  • Set the clearing time on each conflict.

Signal timing plan

  • Set cycle time (tC) first to 127 s, assign the corresponding phase change matrix
  • Define the signal timing plan according to the fixed-time plan within VISSIM; add a new timing information by clicking and dragging the mouse while the control key is pressed; alternatively the numerical val-ues at the right side can be input.
  • Define additional information as
    • tPON: point of time for program switch on
    • tPOFF: point of time for program switch off
    • tPCHG: point of time for best program change
  • You can define the plan directly from the VISSIM ".inp file" values:
-- Signal Controlled Junctions (SCJ): --
---------------------------------------- SCJ 1 NAME "" TYPE FIXED_TIME CYCLE_TIME 127.0 OFFSET 0.0 SZPCONF_FILE "xxm.szp"
SIGNAL_GROUP 1 NAME "xxm1" SCJ 1 RED_END 52.0 GREEN_END 76.0 RED_END 100.0 GREEN_END 122.0 TRED_AMBER 0.0 TAMBER 5.0
SIGNAL_HEAD 4 NAME "" LABEL 0.00 0.00 SCJ 1 GROUP 1 POSITION LINK 66 LANE 1 AT 236.986 VEHICLE_CLASSES 6
SIGNAL_HEAD 26 NAME "" LABEL 0.00 0.00 SCJ 1 GROUP 1 POSITION LINK 46 LANE 1 AT 3.376 VEHICLE_CLASSES 5
SIGNAL_HEAD 25 NAME "" LABEL 0.00 0.00 SCJ 1 GROUP 1 POSITION LINK 45 LANE 1 AT 5.420 VEHICLE_CLASSES 5
SIGNAL_HEAD 3 NAME "" LABEL 0.00 0.00 SCJ 1 GROUP 1 POSITION LINK 4 LANE 1 AT 106.152 VEHICLE_CLASSES ALL
SIGNAL_HEAD 2 NAME "" LABEL 0.00 0.00 SCJ 1 GROUP 1 POSITION LINK 4 LANE 2 AT 106.009 VEHICLE_CLASSES ALL
SIGNAL_GROUP 2 NAME "xxm2" SCJ 1 RED_END 52.0 GREEN_END 95.0 TRED_AMBER 0.0 TAMBER 5.0
SIGNAL_GROUP 3 NAME "xxm3" SCJ 1 RED_END 1.0 GREEN_END 22.0 TRED_AMBER 0.0 TAMBER 5.0
SIGNAL_GROUP 4 NAME "xxm4" SCJ 1 RED_END 27.0 GREEN_END 47.0 TRED_AMBER 0.0 TAMBER 5.0
SIGNAL_GROUP 5 NAME "" SCJ 1 RED_END 100.0 GREEN_END 122.0 TRED_AMBER 0.0 TAMBER 5.0
SIGNAL_GROUP 6 NAME "" SCJ 1 RED_END 81.0 GREEN_END 95.0 TRED_AMBER 0.0 TAMBER 5.0
SIGNAL_GROUP 7 NAME "" SCJ 1 RED_END 1.0 GREEN_END 22.0 TRED_AMBER 0.0 TAMBER 5.0
SIGNAL_GROUP 8 NAME "" SCJ 1 RED_END 27.0 GREEN_END 47.0 TRED_AMBER 0.0 TAMBER 5.0
SIGNAL_GROUP 91 NAME "" SCJ 1 RED_END 100.0 GREEN_END 122.0 TRED_AMBER 0.0 TAMBER 5.0
SIGNAL_GROUP 95 NAME "" SCJ 1 RED_END 100.0 GREEN_END 122.0 TRED_AMBER 0.0 TAMBER 5.0
SIGNAL_HEAD 7 NAME "" LABEL 0.00 0.00 SCJ 1 GROUP 95 POSITION LINK 10017 LANE 1 AT 6.832 VEHICLE_CLASSES 3

Topology

Display elements

  • Define the display elements for VS-PLUS. In our example, each display element maps a signal head without exception.

Phases

Define GP phases (General Purpose – car traffic) and standard PT phases.

  • Assign a display element per phase.

Detectors

Define GP detectors (General Purpose – car traffic) and standard PT detectors.

  •  Assign a phase per detector. 
  • Certain detector have no detector assignment – these detectors are not usable for VS-PLUS control.

VS-PLUS parameters: detectors

Standard parameters

  • Set unused detectors to INACTIVE 
  • Set Occ_type (detector call mode) to "impulse with occupation", i.e. the detector calls at each rising slope or in case of a continuous occupation. Impulse call only does not call when the frame signal enables calling and there is already a continuous occupation. 
  • Set Tocc (Occupancy time) to the time after which a continuously occupied detector calls. 
  • Set Gap time defining how long a detector continues calling after having been left by the car. 
    • This value is in function of the distance of the detector to the stop bar: when the last car leaves the detector, the signal stays green another 3s in order to allow the car to pass the stop bar. 
    • Another reason for setting this value is ignoring gaps between following cars, i.e. deciding how large a gap can be to be ignored.

PT parameters

  • Assign correct functionality to the detectors (check-in or check-out) 
  • Set rest time to 2 seconds in order to avoid oscillations due to hangers or malfunctioning detectors 
  • Define when the detector can stop a conflicting phase in case of PT pri-ority (not used at the moment)  

VS-PLUS parameters: phases

 
Conflict matrix

  • Define the conflicts between VS-PLUS phases. As the VS-PLUS phases base 1:1 on the signal heads (in this example), the matrix looks like the one shown in for the controller.


VS-PLUS parameters: permissive period plan

  •  Assign signal plan and calculate initial permissive period plan:
  • Modify the plan to the desired structure, taking into account the picture parameters introduced in the next chapter:

     

VS-PLUS parameters: picture parameters

Picture control

  • As there shall be no public transport priority, set the sequence number of PE 3 to 0 and the PE value of PE 3 to "INACTIVE".

Main series

  • Define minor phases for each main phase; pointer delays remain 0. 
  • Main series for the other classes do not exist in the present example. 

Minor phases without call

  • Define all phases which are called automatically with another phase, e.g. when Phase 1 gets green, phases 5, 91 and 95 will also get green.

VS-PLUS parameters: phase change parameters

Phase change matrix

  • Assign the controller phase change matrix and import its times, if desired

Parameter set definitions

  • Set all parameter set definitions, except for the PTmod parameters that we don't use here.

Detector parameters (DP)

Program definition

Exporting the VS-PLUS parameters to the controller

                   

  • Export CSV first, then choose 
    • VCE for an export to VISSIM 
    • VCB for an export to the controller

The files will be written to the intersection file directory. The name equals the intersection name in the tree, i.e. "XiaoXimen.vce".