Hey kyle, here is an example of stoplights with more than 2:
http://motorcycleassistant.com/wp-content/uploads/2008/09/stoplightmoto.jpg
Just so everyone else knows, we were looking at cas’s design for his lights. I thought 2 lights per street was more normal, but he thinks each lane has its own light. News to me, but who am I to argue what is actually done?
Standard design for intersections depends on how many lanes there are. Where you have 4 or 6 lanes (2 or 3 in each direction) it is standard to have the following design in Australia:
The primary traffic light is across the street in the centre median showing the straight and turning arrows. (Furthest away in the picture)
The secondary light is directly in front of the cars in the centre median with an overhanging traffic light showing the straight light and the light mounted on the pole showing both. This is considered secondary as the cars first in line can’t see this traffic light.
The tertiary light is in front of the stopped traffic on the left hand side showing only the straight light (next to the sign that says Ringwood)
There is another tertiary light across the intersection on the left hand side showing the straight signalling.
Additionally on large intersections, there may be a light across the street to the right of the road showing right turn signals. Think of it pretty much as having traffic lights in 3 of the corners plus 2 in the middle. When you have smaller roads, some of the tertiary lights can be removed.
(Also BigCity is designed based on Melbourne streets with left hand drive)
The picture by caspercat5 is very odd, although I have seen such designs in China and on freeways/highways in other countries. A reason it isn’t very common in most cities is that those lights create an artificial height limit on the road which may prevent some large trucks from using it.
Wow that was detailed! hopefully we can use this to set a proper standard for the light system in BC. You see this Cas?