It was time to put in the roads, but first I had to make the traffic lights, and install the wiring. I could not find LED traffic lights of similar size to the ones I used on the span. So I had to make my own. I used a strip of wood which looked and behaved similar to bamboo. My first few attempts to drill the holes for the LEDs failed. Then I found the correct way to go about it. The sides of the light box is from card. This not only keeps the box thin in appearance but also easy to access if future repairs are needed. The LEDs used are 5 mm in diametre. Bottom right photo only shows how it would look on the bridge.