3- (20 points) a) The new community park shown below will generate 1500 vehicle trips during the am peak once it is completed and fully occupied 3 year from now. The current average delay for the neighboring signalized intersection is 19 sec/vehicle. The saturation flow rate and current green ratio for approach a are 3600 vph and 0.65, respectively. The current (existing) am peak volumes on the surrounding roads are as shown. The surrounding area is expected to grow at a 5.0% per year. Once the Park is completed, eighty five percent (85%) of its am peak traffic will travel out. Assume signal timing is not going to change between now and 3 years hence. Determine the following: i. The current LOS for the intersection. ii. The current volume to capacity ratio (v/e) for approach a. iii. What will be the traffic impact of the new park on approach a in terms of the v/c ratio? 1600 vph a + N New Community Park to be completed in 3 years b) An alternate and more sustainable development plan (call it Plan B) for the above development calls for mixed land use where some commercial (retail and not retail) and institutional schools) uses are to be included. Under this scenario only 50% of the trips will leave the area in the am peak period, what is the advantage of the more sustainable plan (Plan B) in terms of the v/c ratio? 3- (20 points) a) The new community park shown below will generate 1500 vehicle trips during the am peak once it is completed and fully occupied 3 year from now. The current average delay for the neighboring signalized intersection is 19 sec/vehicle. The saturation flow rate and current green ratio for approach a are 3600 vph and 0.65, respectively. The current (existing) am peak volumes on the surrounding roads are as shown. The surrounding area is expected to grow at a 5.0% per year. Once the Park is completed, eighty five percent (85%) of its am peak traffic will travel out. Assume signal timing is not going to change between now and 3 years hence. Determine the following: i. The current LOS for the intersection. ii. The current volume to capacity ratio (v/e) for approach a. iii. What will be the traffic impact of the new park on approach a in terms of the v/c ratio? 1600 vph a + N New Community Park to be completed in 3 years b) An alternate and more sustainable development plan (call it Plan B) for the above development calls for mixed land use where some commercial (retail and not retail) and institutional schools) uses are to be included. Under this scenario only 50% of the trips will leave the area in the am peak period, what is the advantage of the more sustainable plan (Plan B) in terms of the v/c ratio
