Causes of traffic jams in Cambodia

People traffic behaviors

Aggressive riding / driving (Swaying/Overtaking/Over speeding )
Taking on phone or listening to loud music when driving or riding vehicles
Ride or drive on the wrong lanes or sides
Do not strictly obey the traffic lights/signs
Loading and unloading things and people on Boulevards /avenues/ streets
Never check the condition of vehicles which can lead to the breaking down in middle of the way.
Stop to buy something along the way while driving or riding

Boulevards /avenues/ streets

Small boulevards/avenues/streets
Sidewalk/ boulevards /avenues/ streets are used for
parking
doing business
leaving garbage
celebrating and arranging wedding, birthdays, funeral, parties, house warming, grand opening days.
Sidewalk/boulevard /avenue/ streets….being under constructions (build draining system, widen boulevard/avenue/streets especially during day and at rush hours not at night when there is less traffic)
Some boulevard/avenue/streets are affected by raining flood and bumpy.

Traffic flow mechanisms

Block of traffics due to transportation of delegations, special events ceremonies
Traffic lights do not work properly
Lack of traffic light, bar and signs
Shortage of traffic controllers (traffic polices and volunteers)

Vehicles