HENDERSON, Nev. - A viewer wants to know why the traffic light at American Pacific Drive and Gibson Road only allows one direction of traffic to go at a time.
The traffic light operates in a lead-lag configuration. That means one left turn and through traffic movement occurs, then two through traffic movements take place, before the other left and through traffic movement are allowed. In other words, the green light takes place in shifts.
Studies show this helps extend the time available to move vehicles down the main street during peak travel times. In this case, that main street is Gibson Road.
The viewer reports, however, this configuration occurs when there is no traffic on American Pacific, and not just during peak travel times. This causes delays along Gibson Road.
Regional Transportation Commission FAST officials say they will investigate this light to see if it is experiencing a detection problem. They also plan to investigate whether the lead-lag configuration is operating correctly.