Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Publication
Articles 1 - 8 of 8
Full-Text Articles in Engineering
Modeling Capacity: Multiple Weaving Areas, Sheida Khademi
Modeling Capacity: Multiple Weaving Areas, Sheida Khademi
Civil Engineering Dissertations
Systematic, well-designed research provides the most effective approach to the solution of many problems facing highway administrators and engineers. Traffic congestion on freeway systems is one significant concern in urban areas throughout the U.S.A. In this era, building new freeways to reduce congestion is less feasible due to the high capital and social costs. Thus, the effective management and operation of existing freeway facilities has become a preferred approach to reduce traffic congestion. A weaving section is a common design on major highway facilities that always has been an interest to researchers. Weaving areas are characterized by frequent lane changes, …
A Case Study On The Capacity And Competitiveness Of Small-Sized Contractors On The Central Coast Of California, Lev S. Garcia
A Case Study On The Capacity And Competitiveness Of Small-Sized Contractors On The Central Coast Of California, Lev S. Garcia
Construction Management
The market conditions in which small-sized construction firms in California compete can be significantly influenced by the regional location of their projects. This research paper reviews a qualitative case study executed through semi-structured interviews with two construction firms on the Central Coast of California. Through gaining the perspectives of two companies, one that recently grew into a medium sized company and one that is small-sized, this case study aims to identify market characteristics that influence small-sized companies’ abilities to compete on the Central Coast. The case study indicates that competition between existing companies, the threat of new arrivals, the cost …
Characterizing Truck Parking Shortages In Arkansas: A Data Analytical Approach, Morgan Hartsell
Characterizing Truck Parking Shortages In Arkansas: A Data Analytical Approach, Morgan Hartsell
Industrial Engineering Undergraduate Honors Theses
The Truck Parking Problem occurs when drivers have met the daily driving limit and encounter a decision between driving over time or parking in unauthorized locations. This research applies data analytics to gain further knowledge to characterize the truck parking shortage in Arkansas. Truck parking shortages are a serious problem that truck drivers face daily and is complex due to Hours of Service (HOS) regulations restrictions on legal parking areas and design. Existing research includes a one-day annual survey which compiles where public rest stops, businesses, and private rest stops are utilized by truck drivers. This research expands on the …
Proposal Of A Model That Allows To Improve The Behavior Of The Passenger Flow Inside The Transmilenio Stations, David Robles Forero
Proposal Of A Model That Allows To Improve The Behavior Of The Passenger Flow Inside The Transmilenio Stations, David Robles Forero
Ingeniería Civil
No abstract provided.
Capacity-Related Driver Behavior On Modern Roundabouts Built On High-Speed Roads, Shaikh Ahmad
Capacity-Related Driver Behavior On Modern Roundabouts Built On High-Speed Roads, Shaikh Ahmad
Open Access Theses
The objective of this thesis was to investigate the factors that affect capacity-related driver behavior on modern roundabouts built on high-speed roads. The capacity of roundabouts is strongly affected by the behavior of drivers as represented by critical headway (critical gap) and follow-up headway (follow-up time). The effects of heavy vehicles (single-unit truck, bus, and semi-trailer) and area type (rural or urban) on roundabout capacity were investigated by comparing the critical headways for roundabouts located on high-speed and low-speed roads. The effects of nighttime conditions (in the presence of street lighting) were also considered. Data were collected using the Purdue …
Platooning Safety And Capacity In Automated Electric Transportation, James Fishelson
Platooning Safety And Capacity In Automated Electric Transportation, James Fishelson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Automated Electric Transportation (AET) proposes a system of automated platooning vehicles electrically powered by the roadway via wireless inductive power transfer. This has the potential to provide roadway transportation that is less congested, more flexible, cleaner, safer, and faster than the current system. The focus of this research is to show how platooning can be accomplished in a safe manner and what capacities such an automated platooning system can achieve. To accomplish this, first two collision models are developed to show the performance of automated platoons during an emergency braking scenario: a stochastic model coded in Matlab/Simulink and a deterministic …
Resilience Of Bridges Following Aftershocks, Diego Francisco Espinosa
Resilience Of Bridges Following Aftershocks, Diego Francisco Espinosa
Electronic Theses and Dissertations
The ability to predict the reduction in capacity of a structure after an earthquake is vital in the process of assessing a structure after a main-shock or an after-shock. Main-shocks are normally followed by a few aftershocks in a short period of time. Researchers in the past have focused for the most part on the effects of main-shocks on buildings. Very little research has been performed on the ability to predict the reduction in capacity of bridges in aftershocks. This thesis focuses on providing a way of assessing the reduction in capacity for main-shocks as compared to aftershocks and the …
The Impacts Of Road Capacity Removal, Jason E. Billings
The Impacts Of Road Capacity Removal, Jason E. Billings
Master's Theses
The road infrastructure of North America is aging, and many governments are faced with a critical decision: do we repair or remove freeways from our urban centers? Freeway repair is exceptionally expensive, but removing a freeway is widely seen as a risky venture which may result in negative traffic effects. Therefore, it is necessary to gain a clearer understanding of how removing road capacity effects traffic distribution. Three freeway segments were ultimately selected for case study analysis: two in San Francisco and one in Milwaukee. This analysis consisted of identifying changes in the traffic volumes and volume-capacity (V/C) ratios in …