Roads and Highways Department Geometric Design Standards Draft Version 4

About this manual

This document serves as a guide for the geometric design of roads managed by the Roads and Highways Department (RHD) of Bangladesh. It is intended for RHD staff and consultants, aiming to promote consistent practice in designing roads that are operationally effective, economic, and safe. The manual assumes a baseline knowledge of highway design among its readers.

What's inside

• Introduction
• Design Standards
• The Design Process
• Cross-Sections
• Horizontal Alignment
• Vertical Alignment
• Junctions and Roundabouts
• Designing Safer Roads
• Glossary
• References

Frequently asked questions

What is the primary purpose of this manual?

This manual aims to promote good, consistent practice in the geometric design of Roads and Highways Department roads.

Who is this document written for?

It has been written for RHD staff and their consultants who are assumed to have some knowledge of highway design.