1. Traffic Light Simulation
Lynn Jepsen

2. Introduction and Background
Try and find the most efficient way to move cars through an intersection at different traffic densities
Want to see waiting time and queue length go down
Green light usage needs to go up
Many traffic simulations out there, but none that I have seen with a learning light

3. What it looks like Simulation that obeys most “rules of the road”
Graph of efficiency variables

4. Simulation
Cars on each lane take up a certain number of spaces and have a certain speed at each instant
Speed and space is update every .1 sec along with graphics
Speed up when object in front is getting farther away but with a max. accel.
Slow down for red and most yellow lights
Use Java to show graphics

5. Light Algorithm
Uses previous data (traffic density, efficiency variables, cycle length, and ratio)
Picks best cycle length (length of one cycle in intersection) and ratio(ratio of green light time in each direction) from previous data that has the same traffic density

6. Results and Conclusions
The simulation looks realistic
Light algorithm does cause slightly fewer backups, but could be improved further
Before light algorithm - >