Finite Element Analysis of a Guideway for Automated Transit Networks

An asymmetric beam currently being utilized in a solar powered automated transit system was analyzed for its deflections, stresses, and angle of twist. Finite element analysis (FEA) with ANSYS was used in conjunction with hand calculations from beam theory to determine the response of the guideway to loading anticipated in normal operation. An iterative approach was used for modeling the system, where the geometry was taken from a simplified case and progressed in complexity until the original model was duplicated. After analysis, the deflections, stresses, and angles of twist were found to be within suitable ranges for a suspended transportation system

Transit Performance Measures in California

This research is the result of a California Department of Transportation (Caltrans) request to assess the most commonly available transit performance measures in California. Caltrans wanted to understand performance measures and data used by Metropolitan Planning Organizations (MPOs) and transit agencies to help it develop statewide measures. This report serves as a summary reference guide to help Caltrans understand the numerous and diverse performance measures used by MPOs and transit agencies in California. First, investigators review the available literature to identify a complete transit performance framework for the purposes of organizing agency measures, metrics, and data sources. Next, they review the latest transit performance measures documented in planning reports for the four largest MPOs in California (San Francisco Bay Area, Los Angeles, San Diego, and Sacramento). Researchers pay special attention to the transit performance measures used by these MPOs, because these measures are available for the majority of California’s population. Finally, investigators summarize 231 performance measures used by a total 26 local transit agencies in the State of California, based on transit planning documents available on the internet

An O∗(1.0821n)O^*(1.0821^n)-Time Algorithm for Computing Maximum Independent Set in Graphs with Bounded Degree 3

We give an $O^*(1.0821^n)$-time, polynomial space algorithm for computing Maximum Independent Set in graphs with bounded degree 3. This improves all the previous running time bounds known for the problem

Facilitating social constructivist learning environments for product design Students using social software (Web2) and wireless mobile device.

It is well understood and has been well documented that there is much to gain by using social software in creating collaborative learning communities. However little is known about using a context independent interactive collaborative environment with an emphasis upon sharing, ease of use, customization and personal publishing (MobileWeb2). This paper describes an innovative and integrated MobileWeb2 technology in a product design live project setting, that assists product designers to solve a real problem to serve a real client. Students and teaching staff use a smartphone to capture design decisions and prototypes and collate and share these via an online eportfolio. From the data collected from staff/students surveys it was found that this method provided a stimulating collaborative environment that develops personal skill to bring out their latent creativity in such a way that these will become part of their project. Opportunities for mobile web2 product design projects are outlined. The logistics of providing access to appropriate hardware and software for all students are also discussed