Open Access. Powered by Scholars. Published by Universities.®
- Publication
Articles 1 - 3 of 3
Full-Text Articles in Engineering
Evaluation Of Cost-Effective Alternative Designs For Rural Expressway Intersections, Jonathan Howard
Evaluation Of Cost-Effective Alternative Designs For Rural Expressway Intersections, Jonathan Howard
Master's Theses
Despite numerous studies demonstrating the effectiveness of Restricted Crossing U-Turn (RCUT) intersection design, its implementation remains uneven and close to zero in some large states such as California. This research provides a comprehensive framework to estimate the operational and safety performance of future RCUT designs in California. The framework is demonstrated for five intersections located on high-speed rural expressways in California using VISSIM microsimulation models to measure operational performance for each intersection including the base condition with the existing Two-Way Stop-Controlled (TWSC) intersection and two RCUT designs. To evaluate future safety performance, the microsimulation models were further utilized to compile …
Blacow Road Improvement Plan, Nishita Kandikuppa
Blacow Road Improvement Plan, Nishita Kandikuppa
City and Regional Planning
Providing safe and accessible entrances to schools, especially elementary, middle, and high schools where children are below the age of 18, should be of utmost priority to cities. Providing wide sidewalks, painted bicycle lanes and continental crosswalks (with the lateral lines) are just basic infrastructure improvements that can be made within the vicinity of a school. However, due to lack of funding or attention from the city departments, many school entryways are being neglected and the direct impact of this is increased collisions among students, drivers, and bicyclists. My senior project studied one such school in Fremont, California where the …
Analysis Of The Effects Of Adaptive Ramp Metering On Measures Of Efficiency With A Proposed Framework For Safety Evaluation, Jacky Loh
Master's Theses
Adaptive ramp metering (ARM) is a widely popular intelligent transportation system (ITS) tool that boasts the ability to reduce congestion and streamline traffic flow during peak hour periods while maintaining a lower implementation cost than traditional methods such as freeway widening. This thesis explores the effectiveness of ARM implementation on an 18 mile segment of the Interstate 80 (I-80) corridor in the Bay Area residing in northern California. Smaller segments of this particular segment were analyzed to determine the effective length of ARM on efficiency at various lengths originating from a known bottleneck location. Efficiency values were also compared against …