Levels of difficulty for sustainable roadway design

Calista Y. Tsai, Andrew S. Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Infrastructure projects have been requested to consider sustainability in recent years. However, many engineers have little idea how to start with this new issue. It would help engineers to incorporate sustainability if the difficulties and their reasons can be identified. This research investigated the levels of difficulty for sustainable design, by taking roadways as an example. It first collected 14 roadway design work disciplines such as drainage from a large engineering consulting company. Then it reviewed literature and practice to identify 60 sustainable items, and categorized them into 14 disciplines to establish a checklist. Finally, the checklist was used to interview designers to indicate the levels of difficulty of adopting these sustainable items. The difficulties to achieve sustainability into design are classified into three levels compared with traditional work: equal, medium and high. Twenty eight of the 60 sustainable items were evaluated at the same level of difficulty as traditional design. Approximately half of the items would not increase the difficulty when incorporated into design. The average difficulty would be between equal and medium level. Compared with traditional design work, incorporating sustainability into roadway design would increase certain difficulty.

Original languageEnglish
Title of host publicationManagement, Manufacturing and Materials Engineering
PublisherTrans Tech Publications Ltd
Number of pages5
ISBN (Print)9783037853511
Publication statusPublished - 2012
Event2011 International Conference on Management, Manufacturing and Materials Engineering, ICMMM 2011 - Zhengzhou, China
Duration: 2011 Dec 82011 Dec 10

Publication series

NameAdvanced Materials Research
ISSN (Print)1022-6680


Other2011 International Conference on Management, Manufacturing and Materials Engineering, ICMMM 2011

All Science Journal Classification (ASJC) codes

  • General Engineering


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