Braking Distance Model

This model can be used between the constant acceleration model and tailgate model or it can stand alone. The graphs of velocity vs. distance can be used to derive a relationship which is sometimes seen in high school algebra books.

 THE MODELS
 STELLA Version isee Player Software Right-click to download the model Vensim Version Vensim PLE Software Right-click to download the model Braking DistanceVensim Excel Version Right-click to download the model Braking Distance Excel NetLogo Version NetLogo Software Right-click to download the model Braking Distance NetLogo

NETLOGO MODEL STELLA MODEL

[Diagram Level | Equations Level | Graphs ] ```Distance(t) = Distance(t - dt) + (rate_of_change_of_distance) * dt
INIT Distance = 0 {ft}
rate_of_change_of_distance = Velocity
Velocity(t) = Velocity(t - dt) + (rate_of_change_of_velocity) * dt
INIT Velocity = vel_in_ft_per_sec
rate_of_change_of_velocity = IF (TIME >= React_Time) THEN(Acceleration) ELSE(0)
Acceleration = -28 {ft/sec^2}
Init_Vel = 50 {mph}
React_Time = .5 {sec}
vel_in_ft_per_sec = Init_Vel*5280/3600

```
##### Time Spec Settings
Range: 0-6; dt = 0.05; Integration Method = Runge-Kutta 4   Home | Contact | Site Map | Search