let the sensor count people & conrol the traffic light IMPORTANT

also works with light
technical info:
- direction based counting of people
- can not be confused through objects in the back
- can not be confused by bad lightning situation
- you can control the counting intervals

in general:
so i was thiking about sensors and researched different kinds and in the end i was thinking why not let the sensor control the traffic lights.
i mean they can count with those induction loops how many cars are in which area waiting and this sensor can count people.
so why not put those info together and let the sensors decide which groups gets green light first?
i was thinking a little further and then i found this site (german!)

http://derjulian.net/lt_bak/pages/doku#a1

where they already invented a system which works with infra red sensors and a priority system.
its goes like this:

area 1: 3 people waiting for 60 seconds
area 2: 2 cars waiting for 30 seconds
area 4: a police car waiting

police car, ambulance etc = always prefered with value 999

car linked to time waiting => 10 seconds of waiting = value 20
30 seconds = 40
60 seconds = 70

pedestrian also linked to time waiting => 10 sec of waiting = value 10
30 sec = 20
60 sec = 35



according to this, the police car is first.
2. pedestrians (3x 35 = 105)
3. cars (2x 40 = 80)

i mean this is just an example and u can change all the values and change your priorities.
but it works simple with infra red sensors at different spots and i really think that could improve
the situation because nowadays there are fixed waiting periods for all members no matter if there are any cars or not.
i think this is very important and we should include this thought.