An intersection has a four-phase signal with the movements allowed in each phase and corresponding analysis and saturation flow rates shown in the table below. Phase 2 3 Allowed movements EB L, WB L EB T/R, WB T/R SB L, SB T/R NB L, NB T/R Analysis flow rate 245, 230 veh/h 975, 1030 veh/h 255, 235 veh/h 225, 215 veh/h Saturation flow rate 1750, 1725 veh/h 3350, 3400 veh/h 1725, 1750 vehh 1700, 1750 veh/h Calculate the optimum cycle length (Assume 4 seconds lost time per phase) O 116.466 sec O 104.693 sec O 97.315 sec O 101.399 sec

Q: The southbound approach of a signalized intersection carries a flow of 1000 veh/h/ln at a velocity…

A: WHEN SIGNALS TURN RED: SPEED OF BACKWARD FORMING SHOCK WAVE ϖ13=q1-q3k1-k3 GIVEN: q1=1000…

Q: TRANSPORTATION ENGINNERING-TRAFFIC SIGNALS An approach to a predetermined signal has 25 seconds of…

A: Given data:Cycle time = 60 sec.Effective green time = 25 sec.Approach volume = 500…

Q: SAMPLE PROBLEM Design the intersection given the following vehicular volumes per leg in pcu. Assume…

A: Given Data: Vehicle volumes are given in terms of PCU (Passenger Car Unit) Saturation flow rate is…

Q: What is the sum of the flow ratios for the critical lane groups? What is the total lost time for a…

A: Given data:-

Q: 1. Observers stationed at two sections XX and YY, 500 ft apart on a highway, record the arrival…

A: Given: L = 500 ft T = 15 sec Vehicle Section XX Section YY A To To+7.58 sec B To+3 sec…

Q: The average normal flow of traffic on cross roads A and B during design period are 400 and 250 PCU…

A: given- normal flow of traffic=400 & 250 PCU per hoursaturation flow values=1250 and 1000 PCU per…

Q: The vehicle count obtained in every 10-minute interval of a traffic volume survey done in peak one…

A: From Given Data :  Considering the given time intervals of 10 minutes each and respective vehicle…

Q: Please show all of your work

A: Step 1:Given data:optimum cycle length, L = 67 sec⁡Each phase loss, 𝜙 = 5 sec⁡The given signal is a…

Intersection Design

An intersection is a location where two or more roads or railways meet or join. The traffic movement is controlled at the intersection that depends on its design and type. It governs the operation, efficiency, speed, capacity, and safety of the highways, airways, and railways. The movement of the pedestrian causes hazards and delays at the intersection.