The Papua New Guinea University of Technology
Department of Civil Engineering
CE441: Traffic Engineering
ASSIGNMENT 1
The design hour flows in vehicles at a three-arm priority junction with good visibility for all
movement are given below.
Exit Arm
Approach Arm
WEST
WEST
EAST
SOUTH
NORTH
150
400
300
EAST
SOUTH
NORTH
450
650
380
120
400
140
360
150
50
You should state clearly any assumptions you made in your calculations. Traffic composition
is 20% Single Unit Trucks and 80% cars.
PRIORITY JUNCTION
Question 1:
Assuming good visibility, calculate the delay to vehicles turning right from each approach.
(10 MARKS)
Question 2:
Determine the ENTRY and EXIT volumes and CIRCULATION volumes for each approach
if you were to upgrade the intersection to a roundabout.
(10 MARKS)
Deadline: Monday 17th May 2020 at 4 pm.
Submission: ONLINE IN GOOGLE CLASS ROOM