Digital terrain models (DTMs) are three-dimensional (3D) models of the ground surface showing natural features such as ridges and breaklines.
The TRB National Cooperative Highway Research Program's NCHRP Synthesis 560: Practices for Construction-Ready Digital Terrain Models documents processes and strategies used by state departments of transportation (DOTs) for the use and transfer of DTMs from design into the construction phase of highway projects.
Table of Contents
|Chapter 1 - Introduction||3-6|
|Chapter 2 - Literature Review||7-10|
|Chapter 3 - State of Practice||11-26|
|Chapter 4 - Case Examples||27-38|
|Chapter 5 - Summary of Findings||39-42|
|Appendix A - Survey Questionnaire||45-64|
|Appendix B - Survey Results||65-79|
|Appendix C - Case Example Questions||80-82|
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