JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives

This module focuses on traffic, its properties, measurement, simulation, and

control. It deals with traffic flow variables and their measurement. Traffic flow and queuing theory is introduced. Survey methods and data analysis techniques required by traffic engineers are presented. Interdiction to highway capacity & level of service is dealt. Parking analysis & road safety issues are discussed. The polluting due to traffic & its collect on environment are discussed.

Course Outcomes:

On successfully completing this course, students will possess a good understanding of traffic engineering, know basic quantitative methods required by traffic engineers, understand how different road user groups interact and the consequences for traffic engineering. Examples relating to current industrial practice will be used to illustrate these key concepts.

UNIT - I

Traffic Characteristics Measurement And Analysis: Basic traffic Characteristics - Speed, Volume and Concentration. Relationship between Flow, Speed, and Concentration. Traffic Measurement and Analysis - Volume Studies - Objectives, Methods; Speed studies – Objective, Definition of Spot Speed, time mean speed and space mean speed; Methods of conducting speed studies; Presentation of speed study data; Head ways and Gaps; Critical Gap; Gap acceptance studies.

UNIT - II

Highway Capacity And Level Of Service: Basic definitions related to capacity; Level of service concept; Factors affecting capacity and level of service; Computation of capacity and level of service for two lane highways, Multilane highways and freeways.

UNIT - III

Parking Analysis And Traffic Safety :Types of parking facilities – On-street parking and Off-street Parking facilities; Parking studies and analysis- Parking Inventory Study, Parking Usage Study By Patrolling, Questionnaire Survey, Cordon Surveys; Evaluation of parking parameters; Parking accumulation, Parking Load, Parking Turnover, Parking Index, Parking Volume. Traffic Safety - Accident studies and analysis; Causes of accidents - The Road, The vehicle, The road user and the Environment; Engineering, Enforcement and Education measures for the prevention of accidents.

UNIT - IV

Traffic Control, Regulation Signal Coordination: Traffic Signals –Types of Signals; Principles of Phasing; Timing Diagram; Design of Isolated Traffic Signal by Webster method, Warrants for signalization. Signal Coordination - Signal Co-ordination methods, Simultaneous, Alternate, Simple progression and Flexible progression Systems.

UNIT - V

Traffic and Environment: Detrimental effects of Traffic on Environment, Air pollution; Noise Pollution; Measures to curtail environmental degradation due to traffic. Sustainable Transportation: Sustainable modes, Transit Oriented Development, ITS based benefits for Environment.

REFERENCES:

• 1. Traffic Engineering and Transportation Planning – L.R. Kadiyali, Khanna Publishers.
• 2. Traffic Engineering - Theory & Practice - Louis J. Pignataro, Prentice Hall Publication.
• 3. Principles of Highways Engineering and Traffic Analysis - Fred Mannering & Walter Kilareski, John Wiley & Sons Publication.
• 4. Transportation Engineering – An Introduction - C.Jotin Khisty, Prentice Hall Publication
• 5. Fundamentals of Transportation Engineering - C.S. Papacostas, Prentice Hall India.
• 6. I.T.E. Traffic Engineering Hand Book.