|
|
Foreword |
iii |
|
|
Acknowledgments |
v |
|
|
Preview |
vii |
|
|
Abbreviations |
xiii |
|
1. |
INTRODUCTION |
|
1.1 |
Background |
1-1 |
|
1.2 |
Purpose
and Scope |
1-2 |
|
1.3 |
Focus |
1-3 |
|
1.4 |
Development
of Guideline |
1-4 |
|
1.5 |
Structure
and Content |
1-5 |
|
1.6 |
Updating |
1-6 |
|
1.7 |
Sources
of Information |
1-6 |
|
1.8 |
References
and Bibliography |
1-7 |
|
2. |
REGIONAL SETTING |
|
2.1 |
Introduction |
2-1 |
|
2.2 |
The SADC Region |
2-2 |
|
2.3 |
Regional Road Network |
2-5 |
|
2.4 |
Road Network Details |
2-7 |
|
2.5 |
Low-volume Sealed Roads |
2-9 |
|
2.6 |
Summary |
2-14 |
|
2.7 |
References and Bibliography |
2-15 |
|
3. |
PLANNING, APPRAISAL AND ENVIRONMENTAL
ISSUES |
|
3.1 |
Introduction |
3-1 |
|
3.2 |
Planning |
3-3 |
|
3.3 |
Appraisal |
3-14 |
|
3.4 |
Environmental Issues |
3-25 |
|
3.5 |
Summary |
3-33 |
|
3.6 |
References and Bibliography |
3-34 |
|
4. |
GEOMETRIC DESIGN AND ROAD SAFETY |
|
4.1 |
Introduction |
4-1 |
|
4.2 |
Design Philosophy, Standards and Approach |
4-4 |
|
4.3 |
Design Framework and Process |
4-7 |
|
4.4 |
Design, Controls and Elements |
4-17 |
|
4.5 |
Roadside Safety, Education and Enforcement |
4-28 |
|
4.6 |
Summary |
4-33 |
|
4.7 |
References and Bibliography |
4-34 |
|
5. |
PAVEMENT DESIGN, MATERIALS &
SURFACING |
|
5.1 |
Introduction |
5-1 |
|
5.2 |
Pavements, Materials and Surfacing Terminology |
5-4 |
|
5.3 |
Materials |
5-10 |
|
5.4 |
Pavement Design |
5-27 |
|
5.5 |
Surfacing |
5-43 |
|
5.6 |
Summary |
5-57 |
|
5.7 |
References and Bibliography |
5-58 |
|
6. |
CONSTRUCTION AND DRAINAGE |
|
6.1 |
Introduction |
6-1 |
|
6.2 |
Construction Issues |
6-3 |
|
6.3 |
Construction Equipment |
6-10 |
|
6.4 |
Utilising Soils and Natural Gravels |
6-14 |
|
6.5 |
Construction of Seals |
6-23 |
|
6.6 |
Quality Assurance and Control |
6-26 |
|
6.7 |
Drainage |
6-29 |
|
6.8 |
Summary |
6-37 |
|
6.9 |
References and Bibliography |
6-38 |
|
7. |
MAINTENANCE AND ROAD MANAGEMENT |
|
7.1 |
Introduction |
7-1 |
|
7.2 |
Maintenance Issues |
7-3 |
|
7.3 |
Maintenance Management |
7-11 |
|
7.4 |
Maintenance Operations |
7-24 |
|
7.5 |
Summary |
7-28 |
|
7.6 |
References and Bibliography |
7-29 |
|
8. |
VISION TO PRACTICE |
|
8.1 |
Motivation |
8-1 |
|
8.2 |
Pathway to Implementation |
8-2 |
|
8.3 |
Vision to Practice |
8-6 |
|
8.4 |
References and Bibliography |
8-7 |
|
|
APPENDICES |
|
|
Appendix A - List of Figures and Tables |
A-1 |
|
|
Appendix B - List of Useful Organisations |
B-1 |