Problem 2: Moe Road

Problem 2 Printable Version

The intersection of Moe Road with Route 146 (Intersection B) is signalized and fully actuated. A picture of the site, taken from the perspective of the westbound approach, is shown in Exhibit 2-20. The lane configuration is depicted in Exhibit 2-21.  The eastbound and westbound approaches are both three lanes wide (left, through, and through/right). The eastbound approach is shown here. A second picture of the westbound approach is shown here.

On the eastbound approach, the through lanes (through and through/right) continue east, while the westbound lanes taper to a single lane. You can see the taper in the distance in the photograph. Click here to see a close-up. The northbound and southbound approaches are both one lane wide  (left/ through/right). The northbound approach is shown here and the southbound approach is shown here.

The eastbound traffic arrives in platoons, discharged from the upstream intersection at the entrance to the Shenendehowa campus. (see Problem 3.) The westbound traffic also arrives in platoons, discharged by the Maxwell Drive intersection (see Problem 1). The distance to these intersections is such that the signals tend to synchronize antagonistically. That means the platoons tend to arrive on red. As a result, we’ve assumed arrival type 2 for both approaches. The north and southbound traffic arrives randomly, so we’ve assumed arrival type 3. Another intersection less than a mile to the south provides access to the Shenendehowa main campus; but most of the time, the signal is green north-south, since the only traffic on the side street is going to and from school parking lots.