Decision Making in Engineering Design
Download citation file:
- Ris (Zotero)
- Reference Manager
In order to design facilities or products, one must know how and under what circumstances they will be used. In order to design them cost-effectively, one must also know how specific features are valued by users. These requirements can be met by applying tools of economic demand analysis.
This chapter illustrates the use of economic demand tools by providing a detailed account of their use in the field of urban transportation, where many of them were in fact first developed. Transportation applications include many design decisions, often at the level of an entire system such as a public mass-transit network. The design elements that can be addressed using transportation demand analysis include speed, frequency, reliability, comfort and ability to match people's desired schedules.
The chapter begins (Section 9.1) with a conventional aggregate approach to economic demand, and then moves to disaggregate models (Section 9.2), also known as “behavioral” because they depict decision-making processes by individual consumers. Some specific examples (Section 9.3) and more advanced topics (Section 9.4) are then discussed. Finally, Section 9.5 analyzes two behavioral results of travel-demand studies that are especially important for design, namely travelers' willingness to pay for travel-time savings and improved reliability.