Assume a collision occurs at 10:30 pm on the westbound

Reference no: EM13564919

Assume a collision occurs at 10:30 PM on the westbound of a 4-lane bridge (2-lane in each direction) blocking the entire roadway. When the accident happens, the traffic volume is around 1200 veh/hr. Emergency crew responded quickly to open 1 lane within 30 minutes, and then fully reopen the roadway 25 minutes after that. The westbound roadway capacity and one lane capacity are 3690 and 1845 veh/hr, respectively. The problem specifications are given below: Table 1: Problem inputs Roadway capacity 3690 veh/hr One lane capacity 1845 veh/lane/hr Both lane closure time 30 minutes One lane closure time 25 minutes Total incident time 55 minutes Flow rate 1200 veh/hr

Reference no: EM13564919

Questions Cloud

What force is needed to pull the skier : A 75-kg water skier is being pulled by a horizontal force of520 N an has an acceleration of 2.4 m/s2. what force is needed to pull the skier at a constant velocity

What is the magnitude of each of these forces : Two people carry a 200-kg crate up stairs. The crate is1.25 m long and 0.50 m high, If the force each person applies is vertical, what is the magnitude of each of these forces

Find the centre of mass of the solid : A "T-shaped" body is made from two uniformrods of length 2a by joining the end of one to the midpoint of the other in aperpendicular direction. Find the centre of mass of the solid

Find the discharge for these conditions : A large, static, horizontal , isotropic, confined aquifer 100m thick has a uniform hydraulic conductivity field with K=0.1m/d . The piezometric head s in two observation wells are observed to be 103m and 97.3m

Assume a collision occurs at 10:30 pm on the westbound : Assume a collision occurs at 10:30 PM on the westbound of a 4-lane bridge (2-lane in each direction) blocking the entire roadway. When the accident happens, the traffic volume is around 1200 veh/hr. Emergency crew responded quickly to open 1 lane wit..

Determine the ratio of the velocities vair/vwater : Viscous flow in a pipe is to be tested in the laboratory using both air and water. Assume that the velocities (Vair and Vwater) are such that the air flow is dynamically similar to the water flow. Determine the ratio of the velocities, Vair/Vwater, i..

What is the efficiency of the pond : A rectangular well-mixed aeration lagoon is 60m long, 5m wide, and 2m deep. It receives 400 cubic meters/day of wastewater with a BOD5 of 336mg BOD5/L for treatment. The biodegradation rate constants for the wastewater are yield coefficient = 0.8mg V..

Determine the mass flow rate of r-134a and the cop : A refrigerator operating on the vapor-compression refrigeration cycle using refrigerant-134a as the refrigerant is considered. The temperature of the cooled space and the ambient air are at 108F and 808F, respectively. R-134a enters the compressor at..

How many vehicles per minute must the attendant process : Vehicles begin to arrive at a remote parking lot after the start of a major sporting event. They are arriving at a deterministic but time-varying rate of "3.3-0.1t" where 't' is in minutes. the parking lot attendant processes vehicles ( collects fee ..

User Account

All Pages