Greenroads International Pilot Project

National Expressway No.4 Taichung Beltway-Fengyuan

 

Summary

Owner: Taiwan Area National Expressway Engineering Bureau

Cost: $199 million

Designer: Sinotech Engineering Consultants, LTD

Project Delivery: Design-Bid-Build

Rating System Version: Greenroads v2

Status When Rated: Final Design

Project Length: 3.7 miles (14.8 lane-miles)

Functional Class: Highway

Description

The National Expressway No. 4 Taichung Beltway to Fenguan - Project C714, is one segment in a major highway project connecting the existing section of Expressway No. 4 to State Highway 74 to complete a network of highways in the Taichung metropolitan area. The project consists of an elevated bridge portion and at-grade access road portion, including a landmark cable-stayed bridge as well as a major interchange. The elevated highway will meet with a planned tunnel and bridge segments that will provide the connection to the existing Highway 4. 

Features

The project's sustainable features focus on responsible construction management practices included in the project specifications, as well as its benefits to the regional transportation network. Project highlights include:

 

  • Significant transplanting of trees located in the project alignment beyond local requirements 
  • Required environmental training for contractor  and commitment to track project water use
  • In-depth analysis of potential construction hazards to improve workzone safety 
  • Evaluation of long-life pavement and electric vehicle charging stations during project development
  • Anticipated reduction in travel times and carbon-dioxide emissions 
  • Noise mitigation techniques including a porous asphalt surface layer and noise barriers
  • Reduction of impervious surface area below elevated bridge sections

 

Tanzi Interchange

Highway Aerial View