Civil MDC

A Guide On Geometric Design Of Road

ROAD ENGINEERING ASSOCIATION OF ~LAYSIA .· ·. · · · .A GUIDE ON GEOMETRIC DESIGN OF ROADs· TABLE OF CONTENTS INDEX-· PAGE NO. 1. INTRODUCTION. 1 2. ROAD CLASSIFICATIONS AND DE$IGN STANDARDS 2 2.1 ROAD CLASSIFICATION I HIERARCHY 2 2.2 DESIGN STANDARDS FOR ROADS 5 2.3 ACCESS CONTROL 6 2.4 SELECl’ION OF DESIGN STANDARDS 8 3. DESIGN CONTROL AND CRITERIA 11 3.1 TOPOGRAPHY AND LAND USE 11 3.2 TRAFFIC 12 3.3 DESIGN VEHICLES CHARACfERISTICS 14 3.4 SPEED 18 3.5 CAPACITY 20 4. ELEMENTS OF DESIGN 25 4.1 SIGHT DISTANCE 25 4.2 HORIZONTAL ALIGNMENT 34 4.3 VERTICAL ALIGNMENT 44 4.4 COMBINATION OF HORIZONTAL AND VERTICAL 52 ALIGNMENT 5. CROSS SECTION ELEMENTS 61 5.1 PAVEMENT 61 5.2 LANE WIDTH & MARGINAL STRIPS 62 5.3 SHOULDERS 62 5.4 KERBS 66 . 5.5 SIDEWALKS 69 5.6 TRAFFIC BARRIERS 69 5.7 MEDIANS 69

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