Planning Issue: Urban Traffic Congestion
Demand>Supplies, Volume of Traffic>Available road capacity
2 Main Reasons:
1) Limited road capacity
2) The number of vehicles increasing
Limited Road Capacity:
--Indiscipline of road user (talking on cellphone when driving)
--Illegal parking on road side
--Hawkers on road side
--Accident
--Poor road design (no pedestrain bridge&underpass)
--The mixture of traffic
--etc.
The number of vehicles increasing:
--Urbanization
--Population growth
--Higher incomes
--Car price decreased
--etc.
Negative effect of traffic congestion:
--Delay and wasting time
--Increasing wear and tear of vehicles
--Wasting fuel
--Increasing air pollution
--Uncomfortable (affect mood of driver&passenger)
--Will delay emergency (eg. ambulance)
Economic Conflict:
Growth of demand==>Increasing cost of supply
In some cases, Increasing cost of supply
So, the congestion need to be tolerated untill the benefits rise sufficiently to justify the higher road construction costs.
Solutions:
As we know, traffic congestion because Demand>Supplies.
So, the solution could start from 2 aspect: Increasing supply and Reduce demand
Increasing Supply:
--Increasing road capacity (add more lanes)
--Creating new routes
--Traffic management(CCTV control and monitor traffic)
--Creating bridge, overpass etc.
--Road facilities improvement
--etc.
Reduce Demand:
--Parking restriction
--Reduction of road capacity to force traffic onto other travel mode
--Increasing road pricing, petrol tax
--Road space rationing
--Education, incentive to use public transport
--etc.
Other solutions:
--School&company control dismiss time, avoid peak hour or differ dismiss time
--Encourage online business(shopping online etc.)
For example, KTMB (Keretapi Tanah Melayu Berhad), monorail and light rail helped to solve traffic congestion in Kuala Lumpur.
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