Road Design Standard Part I- Geometry-Cambodia - MPWT OF KINGDOM OF CAMBODIA
The Cambodia Road Design Standard is intended to be used for the design of all new roads in the Kingdom of Cambodia. The Cambodian Road Design Standard consists of the following complementary documents which shall be considered together:
- CAM PW 03-101-99 Road Design Standard – Part 1 - Geometry;
- CAM PW 03-102-99 Road Design Standard – Part 2 - Pavement;
- CAM PW 03-103-99 Road Design Standard – Part 3 - Drainage;
For the purpose of regulating and interpreting the provisions of this Standard, the AUTHORITY shall be the Cambodian Ministry of Public Works and Transport.
TABLE OF CONTENTS
1.1 INTRODUCTION
1.1.1 Design Standards
1.2 DESIGN STANDARDS & ROAD CLASSIFICATION
1.2.1 Design Factors
1.2.2 Road Standards
1.2.3 Road Classification
1.2.4 Access Control
1.2.5 Design Standards
1.2.6 Utilities
1.3 DESIGN CRITERIA
1.3.1 Topography
1.3.2 Design Vehicles and Characteristics
1.3.3 Speed
1.3.4 Capacity
1.4 HORIZONTAL ALIGNMENT
1.4.1 General
1.4.2 Movement on a Circular Path
1.4.3 Superelevation
1.4.4 Maximum Side Friction
1.4.5 Horizontal Curvature
1.4.6 Plan Transition Curves
1.4.7 Application of Superelevation
1.4.8 Superelevation Development Length
1.4.9 Positioning of Superelevation Development
1.4.10 Small Changes in Alignment
1.4.11 Widening on Horizontal Curves
1.4.12 Curves with Adverse Crossfall
1.4.13 Radius to Meet Sight Distance Requirements
1.5 SIGHT DISTANCE
1.5.1 General
1.5.2 Driver Capability
1.5.3 Constants Assumed for Calculation of Sight Distance
1.5.4 Height of Eye and Object Cut Off Height
1.5.5 Stopping Sight Distance
1.5.6 Passing Sight Distance
1.6 CROSS SECTIONS
1.6.1 Elements of Cross Sections
1.6.2 Crossfalls
1.6.3 Lane Widths and Marginal Strips
1.6.4 Shoulder Widths
1.6.5 Medians
1.6.6 Pedestrian Crossings
1.7 VERTICAL ALIGNMENT
1.7.1 General
1.7.2 Type of Curve
1.7.3 Crest Vertical Curves
1.7.4 Sag Vertical curves
1.7.5 Grades
1.8 DESIGN FORM
1.8.1 General
1.8.2 Design Approach
1.8.3 The Driver's View
1.8.4 Fitting the Road to the Terrain
1.8.5 Horizontal Alignment
1.8.6 Vertical Alignment
1.8.7 Combined Horizontal and Vertical Curvature
APPENDIX A
APPENDIX B