FIVE PILLARS.pptx - TRAFFIC MANAGEMENT AND ACCIDENT...

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TRAFFIC MANAGEMENT AND ACCIDENT INVESTIGATION
THE FIVE PILLARS OF TRAFFIC TRAFFIC ENGINEERING TRAFFIC EDUCATION TRAFFIC ENFORCEMENT TRAFFIC ECOLOGY/ENVIRONMENT TRAFFIC ECONOMY
TRAFFIC ENGINEERING 1 ST PILLAR OF TRAFFIC:
TRAFFIC CONTROL DEVICES AND AIDS Types of Traffic Devices and Aids
Traffic or Road Signs A device mounted or on portable support where a message is conveyed by means of words or symbols, officially erected or installed for the purpose of regulating, warning or guiding traffic. A sign usually made of metal plate in a conspicuous location beside a road. It has a specific shape and design and usually a symbol or words for the purpose of informing road users of applicable road conditions and instructions.
Traffic or Road Signs
Pavement or Road Markings All lines, patterns, words, colors, or other gadgets except signs, set into the surface or applied or attached to the pavement or curbing, or to objects within or adjacent to the roadway, officially placed for the purpose of regulating, warning or guiding traffic.
Traffic Light Signals or Traffic Signals A signal operated manually, electrically by which traffic is alternately commanded to stop and permitted to proceed. Usually located on highly traveled intersections designed to regulate the flow of traffic manually or automatically apportioning intervals for traffic in specific directions to flow and stop.
Traffic Island Areas within the roadway constructed in a manner to establish physical channels through which vehicular traffic is guided. Physical structure usually constructed at or near intersections.
The Three Primary Aims of Signal Control To reduce traffic conflicts and delay To reduce accidents. To economize police time.
Elementary Requirements They should compel attention. They should convey a simple, clear meaning at a glance. They should allow time for response. They should command respect.
Fundamental Traits Design and outward aspect of the device. Position or placement with respect to the normal line of vision of road users. Maintenance of the condition, appearance and visibility.
Criteria for Signal Volume Minimum vehicular volume Interruption of continuous traffic Minimum volume of pedestrians School crossing Progressive movement Accident experience
TRAFFIC EDUCATION 2 ND PILLAR OF TRAFFIC
TRAFFIC EDUCATION The process of giving training and practice in the actual application of traffic safety knowledge.
Traffic Safety Education It is the process of training road users in the avoidance and prevention of traffic-related accidents.
Road Safety It refers to reduce risks of accident or injury on the roads, achieved through multi- disciplinary approaches involving road engineering and traffic management, education and training of road users, and vehicle design.
1. Factors Contributing to Accidents Research studies in the United Kingdom have shown that human factors contribute to 95% of accidents, road factors to about one quarter of a percent, and vehicle factors to fewer than 5%.

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