Traffic light simulator

Project: Traffic light simulator
Featured:	No
State	Planned
Members	Xopr
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Description	School example of implementing traffic lights
Picture

Some brain dump on charlieplexing 8(x3) traffic lights, 4(x2) pedestrian lights, 8 sensors. each number is a pin

        | 36  63     |
      45|            |
      67|            |
        |            |
      16|            |16  12
      72|            |72  34
--------'            '--------

                            37

51                          73

15

--------.            .--------
  45  16|            |16
  67  72|            |72
        |            |
        |            |12
        |            |34
        |     25  52 |
Bottom-right example:
Main traffic lights use a Z-shape connection so that with 90 degrees turn, all combinations are used
1 2
o-o
 /
o-o
3 4
21: Green-A
12: Orange-A
23: Red-A
32: Orange-B
34: Red-B
43: Green-B

Pedestrian light uses L-shaped pinout so that opposing lights carry the same signal
1 6
o o
  |
o-o
7 2
16: Red-A
62: Red-B
27: Red-C
71: Red-D
61: Green-A
26: Green-B
72: Green-C
17: Green-D

rest:
35,53

Normal traffic lamp diameter is 210mm, small (bicycle) light is 80mm, big light is 300mm.

Die-cast metal cars are between 1:68 and 1:58 scale; assuming 1:64 scale

• LED 3mm (3.8mm) h=5.3+0.8mm) would be 192mm(243mm) × 422mm
• LED 5mm (5.8mm) h=8.7+1mm) would be 320mm(371mm) × 621mm

According to an article on 3 March 2016, yellow light times are increased to:

• @80km/h → 5s
• @70km/h → 4.5s
• @50km/h → 3.5s

Some Traffic light brands:

• Futura
• Imtech BV (formerly (Groenpol) Peek) (Dutch standaard(?))
• Alustar
• Econolite (American vintage signals)
• VIALIS Nederland Haarlem 'Classic'
• Stoye

Some traffic automation brands:

• Ko Hartog Verkeerstechniek B.V.
• Siemens Nederland NV
• Swarco Nederland BV
• VIALIS

Straight intersection: arrange left, straight + right Uneven intersection: arrange left + straight, right