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SYLLABUS

UNIT-I

HIGHWAY DEVELOPMENT AND PLANNING: Highway development in India – Necessity for highway planning – Different road development plans – Classification of roads – Road network patterns – Highway alignment – Factors affecting alignment – Engineering surveys – Drawings and reports.

UNIT-II

HIGHWAY GEOMETRIC DESIGN: Importance of geometric design – Design controls and criteria – Highway cross section elements – Sight distance elements – Stopping sight distance, Overtaking sight distance and intermediate sight distance – Design of horizontal alignment – Design of super elevation and extra widening – Design of transition curves – Design of vertical alignment – Gradients – Vertical curves.

UNIT-III

TRAFFIC ENGINEERING: Basic parameters of traffic – Volume, Speed and density – Definitions and their inter relation – Highway capacity and level of service concept – Factors affecting capacity and level of service – Traffic volume studies – Data collection and presentation – Speed studies – Data collection and presentation – Parking studies and parking characteristics – Road accidents – Causes and preventive measures – Accident data recording – Condition diagram and collision diagrams. TRAFFIC REGULATION AND MANAGEMENT: Road traffic signs – Types and specifications – Road markings – Need for road markings – Types of road markings – Specifications – Design of traffic signals – Webster method – Saturation flow – Phasing and timing diagrams – Numerical problems.

UNIT-IV

INTERSECTION DESIGN: Conflicts at intersections – Channelisation : Objectives – Traffic islands and design criteria – Types of Atgrade intersections – Types of grade separated intersections – Rotary intersection – Concept of rotary and design criteria – Advantages and disadvantages of rotary intersection.

UNIT-V

PAVEMENT DESIGN: Types of pavements – Difference between flexible and rigid pavements – Pavement components – Sub grade, Sub base, Base and wearing course – Functions of pavement components – Design factors – Flexible pavement design methods – G.I method, CBR method, (as per IRC 37-2002) – Design of rigid pavements – Critical load positions – Westergaard’s stress equations – Computing radius of relative stiffness and equivalent radius of resisting section – Stresses in rigid pavements – Design of expansion and contraction joints in CC pavements. Design of Dowel bars and Tie bars.