Question: 17. A signalized intersection approach has an upgrade of 4%. The total width of the cross street at this intersection is 18 m. The average vehicle length of approaching traffic is 4.8 mt. The speed of approaching traffic is 64 km/h. Determine the minimum length of necessary change and clearance intervals. 18.

An isolated pretimed signalized intersection has an approach with a traffic flow rate of 750 veh/h and a saturation flow rate of 3200 veh/h. This approach is allocated 32 seconds of effective green time. The cycle length is 100 seconds. Determine the average approach delay (using Eq. 7.27). A) 34.8 s B) 30.2 s (incorrect) C) 35.0 s D) 4.6 s

Problem 3: Chapter 7 Signalized Intersection Average Approach Delay (Eq.'s 7.6, 7.11, 7.21, 7.25, 7.27 & 7.28) An isolated pretimed signalized intersection has an approach with traffic flow rates of 235 vehicles/hour (veh/h) for through and right turn (T+RT) and 255 veh/h for left turns (LT) and saturation flow rates of 1750 veh/h for T+RT and 1725 for LT.

Question: (10 points) Tuscaloosa has a signalized intersection with four legs/approaches. Its signal cycle length is 120 seconds. The eastbound approach gets 60 seconds of effective green time within each cycle of the signal. The saturation flow rate for this approach is 2000 veh/hr.

2. Compute the total delay (sum of uniform and over-saturation delay for all approaches assuming deterministic arrivals) at the signalized intersection using the optimum phase split for cycle lengths ranging from 30 to 120 seconds at increments of 5 seconds. Plot the intersection delay on the y-axis against the cycle length on the x-axis. 3.

10. Traffic on a northbound approach of a signalized intersection is traveling at 40 mph, with a density of 30 vpm. The duration of the red light for this approach flow is 2000 veh/hr/ln with a density 70 veh/mi/In. The jam density is 140 veh/min. Determine: is 45 sec. If the saturation (a) The length of the queue at the end of the red light.

Traffic on the eastbound approach of a signalized intersection is traveling at 35 mi/hr, with a density of 46 veh/mi/ln. The duration of the red signal indication for this approach is 30 sec. If the saturation flow is 1900 veh/h/ln with a density of 52 veh/mi/ln, and the jam density is 125 veh/mi/ln, determine the the length of the queue at the ...

Question: Three signal phases will be designed for a signalized intersection. Given the total effective green time is 57 seconds. The volume/saturation (v/s) of the critical lane group for all the phases are listed below. Apply the HCM method to allocate effective green time to each phase. Fill in the result of Phase 2 below.

3. /The southbound approach of a signalized intersection carries a flow of 1000 veh/h/In at a velocity of 50 mph. The duration of the red signal for this approach is 15 seconds. If the saturation flow is 2000 yeh/h/ln with a density of 75 veh/In, the jam density is 150 yeh/mi, determine: a. The length of the queue at the end of the red phase b.

An approach to a signalized intersection has a saturation flow rate of 1800 veh/h. At the beginning of an effective red, there are 6 vehicles in queue and vehicles arrive at 900 veh/h. The signal has a 60-second cycle. The approach is allocated 35 seconds of green time and 4 seconds of yellow. All red time is 2 seconds. a.