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Now showing items 21-30 of 34
Experimental Investigation Of Shear Capacity Of Precast Reinforced Concrete Box Culverts
(Civil & Environmental Engineering, 2007-08-23)
This study presents the experimental investigation of the shear capacity of four precast rinforced concrete box culverts. Each culvert was subjected to a monotomically increasing load through a 20-in x 10-in load plate, ...
Effects Of A Debonding Flaw Size And Location On The Flexural Performance Of CFRP Retrofitted Steel Sections
(Civil & Environmental Engineering, 2007-10-08)
In US there are several thousand steel bridges at present. Out of them many bridges are at various level of advance deteriorations due to many years of service life and environmental factors. These bridges cannot be fully ...
Investigation Of Bamboo As Reinforcement In Concrete
(Civil & Environmental Engineering, 2007-08-23)
This study investigated the feasibility of using bamboo as a reinforcement alternative to steel in concrete structural members. The specifications studied were the bamboo's tensile strength and its pullout characteristics ...
Stated Preference Modeling And Analysis Of Managed Lanes
(Civil & Environmental Engineering, 2007-08-23)
The thesis deals with the Managed Lanes demand estimation problem in the state of Texas. Managed Lanes are a general type of High Occupancy Toll roads, whose lane management and operational features may be dynamically ...
Regional Prioritization Of Corridors For Traffic Signal Retiming
(Civil & Environmental Engineering, 2007-08-23)
Every three to four years, the North Central Texas Council of Governments (NCTCOG) funds signal retiming projects to improve air quality in the Dallas-Fort Worth region. As sufficient funds are not available to retime all ...
The Travel Behavior Of Minority Cohorts In Texas
(Civil & Environmental Engineering, 2007-09-17)
Texas is changing dramatically; the most conservative population forecast indicates that Hispanics will account for 50% of the Texas population before 2035. Not only is the number of Hispanics on the rise in Texas, but ...
Effectiveness Of Signal Coordination As An Emission Reduction Measure For Vehicles
(Civil & Environmental Engineering, 2007-08-23)
Air Pollution is a significant health and environmental concern. Vehicular emissions are major contributors to many air pollution problems. There is growing interest in reducing carbon dioxide emission because of the ...
Impacts Of Signal Synchronization On Vehicular Emissions - An On-board Measurement Case Study
(Civil & Environmental Engineering, 2007-08-23)
Nearly 56% of total nitrogen oxide (NOx) emissions are produced by mobile sources. Transportation and air quality managers at the state and regional level have the responsibility of developing and evaluating Transportation ...
Impact Of A Pre-combustion Retrofit Device On Vehicular Emissions: A Case Study
(Civil & Environmental Engineering, 2007-08-23)
Vehicular emissions are a major cause of air pollution in the cities worldwide. Increased numbers of vehicles and the vehicle miles traveled by them every year means that the emissions are going to have a detrimental effect ...
Determination Of Safe Buffer Width Of Roadway To Protect Human Health Form Harmful NOx Exposure
(Civil & Environmental Engineering, 2007-08-23)
According to the 2004 EPA Trends Report, US on-road transportation sources emit 36% of nitrogen oxides (NOx), 63% of carbon monoxide (CO), and 29% of volatile organic compounds (VOCs). This research determines a safe roadway ...