CE2255 HIGHWAY ENGINEERING

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# How to study this subject

OBJECTIVE
The objective of the course is to educate the students on the various components of Highway
Engineering. It exposes the students to highway planning, engineering surveys for highway
alignment, Design of Geometric Elements of Highways and Urban roads, Rigid and Flexible
pavements design. The students further learn the desirable properties of highway materials and
various practices adopted for construction. This course enables the students to develop skill on
evaluation of the pavements and to decide appropriate types of maintenance.
UNIT I HIGHWAY PLANNING AND ALIGNMENT 9
History of Road Construction, Highway Development in India - Jayakar Committee
Recommendations and Realisations, Twenty-year Road Development Plans, Concepts of Ongoing
Highway Development Programmes at National Level, Institutions for Highway
Development at National level - Indian Roads Congress, Highway Research Board, National
Highway Authority of India, Ministry of Road Transport and Highways (MORTH) and Central
Road Research Institute. Requirements of Ideal Alignment, Factors Controlling Highway
Alignment Engineering Surveys for Alignment - Conventional Methods and Modern Methods
(Remote Sensing, GIS and GPS techniques) Classification and Cross Section of Urban and
Rural Roads (IRC), Highway Cross Sectional Elements  Right of Way, Carriage Way, Camber,
Kerbs, Shoulders and Footpaths [IRC Standards], Cross sections of different Class of Roads -
Principles of Highway Financing
UNIT II GEOMETRIC DESIGN OF HIGHWAYS 9
Design of Horizontal Alignment  Horizontal Curves Super elevation, Widening of Pavements on
Horizontal Curves and Transition Curves Design of Vertical Alignments  Rolling, Limiting,
Exceptional and Minimum Gradients, Summit and Valley Curves-Sight Distances - Factors
affecting Sight Distances, PIEV theory, Stopping Sight Distance (SSD), Overtaking Sight
Distance (OSD), Sight Distance at Intersections, Intermediate Sight Distance and Illumination
Sight Distance [Derivations and Problems in SSD and OSD] -Geometric Design of Hill Roads
[IRC Standards Only]37
UNIT III FLEXIBLE AND RIGID PAVEMENTS 9
Rigid and Flexible Pavements- Components and their Functions -Design Principles of Flexible
and Rigid Pavements, Factors affecting the Design of Pavements - ESWL, Climate, Sub-grade
Soil and Traffic - Design Practice for Flexible Pavements [IRC Method and RecommendationsProblems]
- Design Practice for Rigid Pavements  IRC Recommendations - concepts only.
UNIT IV HIGHWAY MATERIALS AND CONSTRUCTION PRACTICE 9
Desirable Properties and Testing of Highway Materials: Soil  California Bearing Ratio Test,
Field Density Test - Aggregate - Crushing, Abrasion, Impact Tests, Water absorption, Flakiness
and Elongation indices and Stone polishing value test - Bitumen - Penetration, Ductility,
Viscosity, Binder content and Softening point Tests. - Construction Practice - Water Bound
Macadam Road, Bituminous Road and Cement Concrete Road [as per IRC and MORTH
specifications] - Highway Drainage [IRC Recommendations]
UNIT V HIGHWAY MAINTENANCE 9
Types of defects in Flexible pavements  Surface defects, Cracks, Deformation, Disintegration 
Symptoms, Causes and Treatments. - Types of Pavement, Failures in Rigid Pavements 
Scaling, Shrinkage, Warping, Structural Cracks Spalling of Joints and Mud Pumping  and
Special Repairs. - Pavement Evaluation  Pavement Surface Conditions and Structural
Evaluation, Evaluation of pavement Failure and strengthening - Overlay design by Benkelman
Beam Method [Procedure only],
TOTAL: 45 PERIODS
TEXT BOOKS:
1. Khanna K and Justo C E G, Highway Engineering, Khanna Publishers, Roorkee, 2001.
2. Kadiyali L R, Principles and Practice of Highway Engineering, Khanna Technical
Publications, Delhi, 2000.
REFERENCES:
1. Transportation Engineering & Planning, C.S. Papacostas, P.D. Prevedouros, Prentice
Hall of India Pvt ltd, 2006.
2. IRC Standards (IRC 37 - 2001 & IRC 58 -1998)
3. Bureau of Indian Standards (BIS) Publications on Highway Materials
4. Specifications for Road and Bridges, MORTH (India)

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