Scaled precedence activity network (SPAN) approach to design of transportation systems: A methodology developed to introduce road facilities for lean vehicles
The problem of transition from some existing transportation system to an alternative system without large initial investment is addressed by identifying transition pathways. A graphical technique used combines engineering benefit/cost analysis and precedence diagrams from project management. The approach defines and evaluates potential adjustments to existing system and relationships between the adjustments. Logical strategies for introduction, which combine several different technologies, are identified from the SPAN diagrams. Strategies are selected by matching the level of deployment of technologies with the market level. Design of a system of parking and road facilities for single-passenger commuter vehicles is used as a case study. Various adjustments to existing facilities are identified, classified, and evaluated using the activity network approach. The concepts range from low-cost modifications appropriate for introduction of commuter vehicles into the market, to more expensive modifications suitable for larger numbers of such vehicles.
- Research Organization:
- California Univ., Berkeley, CA (United States)
- OSTI ID:
- 6930905
- Resource Relation:
- Other Information: Thesis (Ph.D.)
- Country of Publication:
- United States
- Language:
- English
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