1. For traffic signal control in a T junction: Provide the allocation List Draw the Grafcet and obtain the grafcet equation Develop the ladder programming from the grafcet Figure below shows the T junction with three traffic signals. Each traffic light cycles through red (i.e. stop) time depends on the other two signals, red & amber (i.e. get ready to go) for 5 seconds, green (go) for 20 seconds, and amber (stop if safe to do so) for 5 seconds. major road SIGNAL 3 Hooo ISSSSSS OOH SIGNAL 2 Hoog SIGN41 00 minor road Figure