How and what data is gathered- Simulation
To make this as realistic as possible, data is required to be gathered over a long period of time. This can be done by sensors near/in the road, using cameras or manual data collection. Data gathered comprise:
- count the number of vehicles passing in all directions at each junction .....
- ..... At a particular time of day
- count how many cars build up at a junction before lights change
- is it a week day or bank holiday or weekend
- How long it takes to clear vehicles at a junction
- Other data (such as pedestrian crossings)
- Time for largest/slowest vehicle to pass through a junction
- Other factors (for example filtering of traffic to the right or left)