Optimizing Maintenance Activities Second Report: Snow and Ice Control Operations

FH-11-8250This report presents the major results of an in-depth study of Snow and Ice Control Operations conducted in four States during the winter of 1975-76. The states involved were California, Colorado, Pennsylvania, and Utah. To the extent possible, within the time frame of the study, all aspects of snow and ice control activities (material, equipment and labor) were analyzed. Initial estimates indicate potential savings on the order of $5 million among the four states upon implementation of the changes recommended as a result of this project. The recommendation with the greatest potential for immediate cost reduction are the control of application rates and the adoption of ground control spreaders

Final Environmental Assessment and Finding of No Significant Impact For the Proposed Safety of Dams Modifications and Bridge Reconstruction

The Bureau of Reclamation, Provo Area Office (Reclamation) proposes to replace the concrete spillway structure at Scofield Dam, the principal feature of the Scofield Project. This construction project would be completed under the Safety of Dams (SOD) Act of 1978 (Public Law 95-578, as amended). The proposed SOD modifications would correct safety deficiencies of the dam without affecting the purpose, or benefits of the dam. Reclamation also proposes to replace the existing gate house at its current position on the crest of the dam. This building is in poor condition and would be replaced with either a new concrete structure or a metal building

Airport to University West-East Corridor Study Salt Lake City, Utah Final Environmental Impact Statement

Based upon coordination with public and government agencies, combined with evaluation of technical considerations, the Wasatch Front Regional Council has identified a Light Rail Transit (LRT) systems as the preferred alternative to serve the Airport to University Transportation Corridor of Salt Lake City, Utah. The 10.9 mile west-east corridor will be constructed from the Salt Lake City International Airport, through the Central Business District (CBD) to the University of Utah Health Sciences Center. It will interface with the existing north-south LRT line at 400 South and Main Street, and at South Temple and 400 West. The West-East LRT project will fulfill the following objectives: improve transit reliability between major destinations within the corridor; reduce traffic congestion; improve air quality; interface with the existing and planned regional transit system; assure minimal impacts on the natural and manmade environment; support development of a multi-modal transportation system that is convenient, accessible, and flexible enough to increase capacity; and connect with service extended to new areas in the future. This document describes the environmental impacts associated with the construction and operation of the West-East LRT, and a No-Build alternative. The purpose of analyzing a No-Build alternative is to provide a baseline for comparison of alternatives, as well as to determine the effect of taking no action. The No-Build alternative includes all existing transportation improvements as well as all planned and committed transportation projects listed in the State Transportation Improvement Plan. The environmental, transportation and financial impacts of the two alternatives are evaluated and compared against a wide range of considerations including: land use, visual and aesthetic impacts, historic and cultural impacts, parks and open spaces, socioeconomic and demographic, public safety and security, environmental justice, wetlands, ecosystems, water and air quality, floodplains, potential containment sources noise and vibration, minerals, utilities, mobility, cost effectiveness, and transportation systems. Some impacts to the natural and manmade environment will occur. These impacts, along with mitigation measures to reduce anticipated impacts are detailed in this document

Utah RWIS Traveler Information Evaluation

This research document represents the analysis and recommendations of the University of Utah Traffic Laboratory (UTL) on the following Road Weather Information System (RWIS) topics: (1) public dissemination of RWIS station information and (2) the area of influence of available RWIS equipment

Enabling Decision-Making in Battery Electric Bus Deployment Through Interactive Visualization

69A3551747112The transit industry is rapidly transitioning to battery-electric fleets because of the direct environmental and financial benefits they could offer, such as zero emissions, less noise, and lower maintenance costs. Yet the unique spatiotemporal characteristics associated with transit system charging requirements, as well as various objectives when prioritizing the fleet electrification, requires the system operators and/or decision-makers to fully understand the status of the transit system and energy/power system in order to make informed deployment decisions. A recently completed NITC project, No. 1222 titled An Electric Bus Deployment Framework for Improved Air Quality and Transit Operational Efficiency, developed a bi-objective spatiotemporal optimization model for the strategic deployment of the Battery Electric Bus (BEB) to minimize the cost of purchasing BEBs, on-route and in-depot charging stations, and to maximize environmental equity for disadvantaged populations. As agencies such as the Utah Transit Authority (UTA) adopt the model and results, they desire to have a tool that could enable detailed spatiotemporal monitoring of components for the BEB system (e.g., locations of BEBs, the state-of-charge of batteries, charging station energy consumption at each specific timestamp), so that the integration of BEBs into the power/grid system as well as its operating condition could be better understood. To this end, this Translate Research to Practice grant will support the development of a visualization tool that allows transit operators/planners as well as decision-makers to explore the interdependency of the BEB transit system and energy infrastructure in both spatial and temporal dimensions with high resolution. The tool will be built on the scenario-based optimization modeling effort in NITC Project No. 1222, and allow agencies to make phase-wise (short-, mid-, or long-term) decisions based on investment resources and strategic goals. This project will also develop a guidebook to provide step-by-step guidance on data compilation for BEB analysis, model input, model implementation, and results interpretation. It will further detail how the developed visualization tool is structured and designed to ensure results exploration across transit operation and energy consumption. Both the guidebook and the tool will be directly useful to practitioners to easily implement our optimization model for their own transit network, and allow them to build interactive visualizations to assist with decision-making

Traffic Lights (Lester Wire) P.6

Department of Transportation photograph. Lester F. Wire (right) with "Iron Mike" traffic light

Traffic Lights (Lester Wire) P.2

Depepartment of Transportation Photograph. Edith Wire with plaque commemorating Lester F. Wire

Traffic Lights (Lester Wire) P.4

Department of Transportation. Photograph. First traffic light invented by Lester F. Wire

Traffic Lights (Lester Wire) P.5

Department of Transporatation photograph. First traffic light invented by Lester F. Wire

Traffic Lights (Lester Wire) P.1

Department of Transportation Photograph. Lester F. Wire with modern traffic light and his first metal model