Conditions and Performance Chapter Listing

Conditions and Performance Home Page

Introduction

Summary

Economics-Based Approach to Transportation Investments

Highway Investment Requirements

Bridge Investment Requirements

Combined Highway and Bridge Investment Requirements

Transit Investment Requirements

Cost to Improve Highways and Bridges

Combining the Highway Maximum Economic Investment scenario with the Bridge Eliminate Deficiency Backlog scenario results in a combined average annual Cost to Improve Highways and Bridges of $94.0 billion. This total is broken down by type of improvement and functional class in Exhibit 7-12.

Exhibit 7-12. Average Annual Investment Required to Improve Highways and Bridges

The investment requirements for urban arterials and collectors total $46.8 billion, or 49.8 percent of the total average annual Cost to Improve Highways and Bridges. Investment requirements on rural arterials and collectors are $29.7 billion or 31.6 percent of the total.

System Preservation, System Expansion, and System Enhancement make up 51.2 percent, 40.8  percent, and 8.0 percent respectively of the Cost to Improve Highways and Bridges. As shown in Exhibit 7-13, system preservation makes up a much larger share of total investment requirements in rural areas than in urban areas.

Exhibit 7-13

1998-2017 Cost to Improve Highways and Bridges, Distribution By Improvement Type