HDM-4: Highway Development and Management: volume one: overview of HDM-4

This Version 1.0 edition of Overview of HDM-4 provides a short executive summary describing the HDM-4 system. Where necessary it highlights the differences between the HDM-III and the HDM-4 models. It is intended to be used by all readers new to HDM-4, particularly high-level management within a road organisation. The Overview of HDM-4 is one of five manuals comprising the suite of HDM-4 documentation.