Sub-problem 6c: Planning Analysis at Sweet Avenue
The twenty-year projected volumes for this intersection, adjusted for the peak hour factor, are shown in Exhibit 1-51.
| Exhibit 1-51. 20 Year Projected Volumes at Sweet Avenue | |||
| Approach | LT (veh/hr) | TH (veh/hr) | RT (veh/hr) |
| Eastbound | 354 | 0 | 279 |
| Westbound | 0 | 0 | 0 |
| Northbound | 152 | 643 | 0 |
| Southbound | 0 | 886 | 97 |
This is a T-intersection with no approach for westbound traffic. The northbound movement has the only left turn opposed by through traffic. That movement now has a protected left turn phase. Therefore, it is not necessary to apply the cross product computational step to this sub-problem, because the left-turn treatments have already been determined for all approaches. Instead we must specify the type of protection for each approach.
The choices are:
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Permitted: The left turn moves on a solid green but no protected left-turn phase is displayed at any point in the cycle.
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Protected: The left turn moves only on a green arrow.
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Protected plus permitted: The left turn moves at one point in the sequence on a green arrow and at another point on a solid green, yielding to oncoming traffic.
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Not opposed: There is no protected left-turn phase, but the left turn is never opposed at any point in the cycle. This choice applies at T intersections, one-way streets, and intersections with full directional separation (split-phase operation) between opposing movements.
Discussion:
Which treatment will apply
to each of the approaches at the U.S. 95/Sweet Avenue intersection? When you are ready, click
continue below to proceed.