STISIM Drive (SDL) - PED - Pedestrian

This event displays a pedestrian on the screen and allows the pedestrian to walk within the roadway display scene. The pedestrian may cross in front of the driver's vehicle (across the roadway) or along side the vehicle (down the road). The position, speed and pedestrian's direction are set using the following pedestrian parameters. If the driver’s vehicle comes in contact with a pedestrian, the crash sound effect will be played (if active), and a collision will be added to the driver’s collision total.

EVENT PARAMETERS:

PARAMETER 1:

The longitudinal distance, in feet, that the pedestrian is away from the driver when the pedestrian initially appears.

PARAMETER 2:

The collision time, in seconds, between the driver and the pedestrian when the pedestrian first begins to walk across the road. This is based on the driver’s velocity when the event begins.

PARAMETER 3:

Velocity, in feet/second, that the pedestrian will be walking. If the pedestrian’s velocity is set to 0, then they will just stand there and will not cross the street.

PARAMETER 4:

Initial pedestrian lateral position, in feet, with respect to the roadway dividing line (positive to the right).

PARAMETER 5:

Direction pedestrian is coming from. If you omit this parameter, the program will make the pedestrian approach from the right. To specify the direction the pedestrian will approach from, set parameter 5 to one of the following:

B - Approaching driver from the back (walking away from driver)
F - Approaching driver from the front (walking towards the driver)
L - Approaching from the left
R - Approaching from the right

PARAMETER 6:

The type of pedestrian that will be displayed:

1 - Man dressed in blue
2 - Man dressed in brown
3 - Man dressed in green
4 - Boy dressed in red

You may assign a random number to this pedestrian parameter by using the following syntax notation:

*[low range]~[high range] (for example *1~4)

In this case, the program will randomly choose a number from all of the numbers between the low range number and the high range number. In the example, a number between 1 and 4 (inclusive) would be used. Therefore if the program randomly chose 3, the pedestrian will be a man dressed in green.

EXAMPLE:

1000,PED,1000,5,4,20,R,4

The PED event is generally used as an unexpected obstacle that the driver will have to try and avoid, or for blocking an intersection when the driver is trying to turn. Pedestrians can be set to either walk within the roadway scene or just stand by the side. Furthermore, since you can control the pedestrian’s velocity, you can control how fast they enter the roadway and therefore how critical the driver’s response will be. For situations like this, you can use the BSAV command to record the driver’s steering, braking and throttle responses.

In the example line shown, the pedestrian will appear after the driver has traveled 1000 feet down the road (1000,PED). Initially, the pedestrian will be displayed 1000 feet in front of the driver and 20 feet to the right of the roadway’s dividing line (1000 and 20). In this scenario, when the driver gets to within 5 seconds of the pedestrian, the pedestrian will begin crossing the road at a speed of 4 feet/second and will be going from right to left across the screen (5,4 and R). Finally, the pedestrian that will be displayed will be the boy in the red shirt.