# Geometric Design of Highways VTU Notes Pdf – GDH Pdf VTU

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Here you can download the Geometric Design of Highways VTU Notes Pdf – GDH Pdf VTU of as per VTU Syllabus. Below we have list all the links as per the modules.

## Geometric Design of Highways VTU Notes Pdf – GDH Pdf VTU of Total Modules

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#### Unit – I

INTRODUCTION: Elements Geometric Design control factors like topography-design Sped design vehicle traffic –Capacity-Volume –Environment other factors-IRC and AAHO standards and specification- PCU concept for the design.

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#### Unit – II

CROSS SECTION ELEMENTS: pavement surface Characteristics Friction –skid and skid resistance- Pavement unevenness-light reflecting Characteristics- camber and its shapes – providing camber in the field Pavement width computation –kerbs and its types-Medians shoulders- footpaths- parking lanes-service roads-cycle tracks-driveways-guard rails- width of formation- Right of way –Design of Road humps as per IRC Specification.

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#### Unit – III

SIGHT DISTANCES: Important, types, Side distance at an uncontrolled intersection, derivation, Factors affecting side distance, IRC, AASHTO standards, problems on above.

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#### Unit – IV

HORIZONTAL ALIGNMENT: Definition, Checking the stability of a vehicle, while moving on a horizontal curve, Superelevation, Ruling minimum and maximum radius, Assumptions problems – method of providing superelevation for different curves – Extra widening of pavement on curves – objectives – Mechanical widening – psychological widening – Transition Curve – objectives – Ideal requirements – Types of transition curve – Method of evaluating length of transition curve – Setting the transition curve in the field, set back distance on horizontal curve and problems.

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#### Unit – V

VERTICAL ALIGNMENT: Gradient – Types of gradient – Design criteria of summit and valley curve – Design of vertical curves based on SSD – OSD – Night visibility considerations – Design standards for hilly roads – problems on the above.

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#### Unit – VI

INTERSECTIONS DESIGN: Principle – At-grade and Grade separated junctions – Types – channelization – Features of channelizing Island – median opening – Gap in the median at the junction.

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#### Unit – VII

ROTARY INTERSECTION: Elements – Advantages – Disadvantages – Design guidelines – problem on the above – Grade separated intersection – Three legged intersection – Diamond interchange – Half clover leaf – clover Leaf- Advantages- Disadvantages only.

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#### Unit – VIII

HIGHWAY DRAINAGE Importance – subsurface drainage –surface drainage – Design of cross sections – Hydrological – Hydraulically considerations and design of filter media, problems on above.