Solving Traffic Congestion around School by using School Buses

Driving children to school can cause traffic congestion around school,
especially during the morning peak hours. The present study therefore
applied the queuing theory and traffic simulation software VISSIM to
investigate impacts on traffic when school buses were used as a substitute
for driving children to school in the morning peak hours. After
arranging 8 school buses for 121 students, 68 cars were reduced from
the system. As a result of estimation based on the M/M/1 queuing
theory, the average waiting time to get off from the inner school road
to the outer main road decreased from longer than 15 minutes to 3
minutes. VISSIM simulation results also showed that the average traffic
speed around the school increased 30 – 38 percent, from 10.7 – 11.4
kph to 14.0 – 15.5 kph; the delay decreased 22 – 27 percent, from
2.67 – 2.87 minutes to 1.94 – 2.24 minutes.