Main street has one lane in each direction and a left turning lane. Side street has one lane for right turning traffic and one lane for left turning traffic. Pedestrian crosswalk is only over the side street. The crosswalk has no center island.

Signal phasing  is a traditional three-stage sequence with a filter arrow signal for right turning traffic from the side street

Traffic volumes (veh/h) in each direction are shown in the figure below. 

The lenght of the crosswalk is 13 meters. Pedestrian volume over the side street is so low it has no effect on the saturation flow of the main street eastbound flow (movement 1) 

BACKGROUND DATA

The default background data is used. Check that the last field - number of movements has the value 6. If not, enter that figure and press the button Update the number of movements

VEHICLE AND PEDESTRAIN MOVEMENTS

Input the name, traffic volume and the number of lanes for each movement 1-5.

Change the type of movement 6 to pedestrian crosswalk using the option button, enter the name of the crosswalk and don't cross the field center island and set the lenght of the crosswalk 13 meters. Finally press the button Update movement names.

CONFLICT TABLE

Set the conflict to each pair of movements which can not have green time simultaneously selecting the check box in the crossing of row and column movements.

You may look one column movement at a time and select these row movements which can not have green time simultaneously. You need select only one crossing point of row and column, because the other one will be selected automatically. 

CHECK DATA

Check your data pressing the button 


If everything is OK, you will get the message:

Otherwise you get error messages. You must correct your data before you can go further to the calculation process.

CALCULATION

Start the calculation of the V/C -ratio pressing the button


The calculation process lasts few seconds. When it is finished, you get the table below on the screen.

V/C-ratio is 0.90. The critical movements are marked on the right with figures A. These are #1 Main street eastbound, green time needed is 50 secs, #3 Main street westbound turning left, green time needed is  23 sekuntia and #5 Side street, left turning, green time needed is 10 secs.

Press the BACK TO button in the upper left corner of your browser to go back to your input data.