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- Creators: Arizona. Department of Transportation
ContributorsArizona. Department of Transportation (Issuing body) / Lindholm, Julie Mapes, 1941- (Author) / Inman, Vaughan W. (Author) / United States. Department of Transportation (Contributor) / United States. Federal Highway Administration (Contributor)
Created1987-08
ContributorsArizona. Department of Transportation. Research Center (Issuing body) / Arizona. Department of Transportation (Issuing body) / ERES Consultants, Inc. (Publisher)
Created1990-07-11
Description
Under contract HFR-PL-1(31)264, "Concrete Pavement Design and Rehabilitation," a comprehensive data base was created which contains pavement design and construction data, climatic information, traffic data, and condition data for 48 pavement sections. The data base includes projects from jointed concrete pavements (40 sections), prestressed concrete pavements (4 sections), continuousIy reinforced concrete pavements (2 sections), and 3-layer structural rehabilitation pavements (2 sections).
ContributorsArizona. Department of Transportation (Issuing body) / Lee Engineering (Publisher) / United States. Department of Transportation (Contributor) / United States. Federal Highway Administration (Contributor)
Created1991-07
Description
This project was undertaken to compare operational and safety characteristics of leading versus lagging protected left turn operation. The measures of effectiveness included field measured intersection delay with leading and with lagging left turns. Intersections in Pima County, Glendale, Tempe and Mesa, Arizona were studied with both leading and lagging operation. Intersection delay studies were also done with first car versus third car actuation of leading protected left turn phases. Signal progression was studied with leading, lagging and combination of leading and lagging left turns which provided the best progression. This evaluation was accomplished with an instrumented vehicle and travel time runs throughout a grid. Accident studies were conducted in Tucson, Pima County and Scottsdale, Arizona. These studies compared accident frequency before and after the conversion from leading to lagging left turns. A public opinion survey was conducted to obtain motorists' preference of leading or lagging left turns.
ContributorsRoss, Hayes E. (Author) / Sicking, Dean (Author) / Campise, Wanda L. (Author) / Zimmer, Richard A. (Author) / Arizona. Department of Transportation (Issuing body) / Texas Transportation Institute (Publisher) / United States. Department of Transportation (Contributor) / United States. Federal Highway Administration (Contributor)
ContributorsArizona. Department of Transportation (Issuing body) / Imbsen, Roy A. (Author) / Schomber, Robert A. (Author) / United States. Department of Transportation (Contributor) / United States. Federal Highway Administration (Contributor)
ContributorsArizona. Department of Transportation (Issuing body) / Apogee Research, Inc. (Publisher)
Created1995-07
Description
Arizona, like many other states, faces continuous pressure to invest in transportation despite the chronic threat of spending shortfalls. One new option being explored is the State Infrastructure Bank (SIB), or revolving loan fund. SIBs could be created at the state or multi-state level and would be designed to help states supplement and complement existing financing innovations as well as providing a base for other financial tools.
ContributorsMonsere, Christopher Michael (Publisher) / Arizona. Department of Transportation. Research Center (Issuing body) / Arizona. Department of Transportation (Issuing body) / Cambridge Systematics (Publisher) / United States. Department of Transportation (Contributor) / United States. Federal Highway Administration (Contributor)
Created2016-07
Description
The Arizona Department of Transportation (ADOT) Roadway Departure Safety Implementation Plan (RDSIP) has identified tree removal as a feasible countermeasure to reduce roadway departure crash frequency or severity. Previous ADOT work has identified locations for tree removal, and activities to conduct this work are underway. To test the safety effectiveness of removing the trees, ADOT intends to conduct statistically rigorous before-after safety effectiveness analysis to estimate state-specific crash modification factors (CMFs).
ContributorsArizona. Department of Transportation. Research Center (Issuing body) / Arizona. Department of Transportation (Issuing body) / Sonoma Technology Inc. (Contributor) / Western Transportation Institute (Contributor) / Partners in Brainstorms, Inc. (Publisher) / United States. Department of Transportation (Contributor) / United States. Federal Highway Administration (Contributor)
Created2015-05
Description
Windblown dust events occur in Arizona, and blowing dust has been considered a contributing factor to serious crashes on ... Arizona roadways.... [T]he Arizona Department of Transportation (ADOT) acquires information about predicted or in-progress dust events through National Weather Service forecasts and advisories and through field reports from motorists and ADOT personnel. ADOT then communicates this information to the public.... During this project, researchers developed a set of recommendations that ADOT can implement to identify the most effective means for acquiring data about windblown dust events, communicating ... to the public, and influencing driver behavior....--Page v.
ContributorsVan Dam, Thomas John, 1960- (Author) / Dufalla, Nicole (Author) / Ram, Prashant (Author) / Smith, Kurt D. (Author) / Arizona. Department of Transportation. Research Center (Issuing body) / Arizona. Department of Transportation (Issuing body) / United States. Department of Transportation (Contributor) / United States. Federal Highway Administration (Contributor)
Created2016-08
Description
Instead of going to landfills, certain waste materials from industry and building construction can be recycled in transportation infrastructure projects, such as roadway paving. The beneficial use of waste materials in the construction of transportation infrastructure results in environmental benefits, as well as economic savings over the pavement life cycle. This study focused on the use of waste--i.e. reclaimed asphalt pavement (RAP), recycled asphalt shingles (RAS), ground tire rubber (GTR), recycled concrete aggregate (RCA), construction and demolition waste (CDW), and mine spoil as raw materials for building transportation infrastructure in Arizona. Technical feasibility, availability, and economics were considered in making recommendations regarding expanding the use of the most-promising materials. Recommendations included targeting slight increases in the RAP replacement level (especially in non-surface hot-mix layers and in unbound base and subbase layers), increasing use of GTR through terminal blending, and increasing use of RCA as base and subbase. Other opportunities identified for further investigation include significant increases in RAP replacement level in hot mix asphalt, use of RCA to replace virgin aggregate in new concrete, and facilitation of the use of CDW in some markets. Further research is encouraged on the use of construction and other waste materials to improve the performance of these materials to reduce risk and improve cost effectiveness.
ContributorsGinn, Diane Hart (Author) / Pryor, Debra (Author) / Meyers, Deborah (Of Partners In Brainstorms, Inc.) (Author) / Arizona. Department of Transportation. Research Center (Issuing body) / Arizona. Department of Transportation (Issuing body) / Partners in Brainstorms, Inc. (Publisher) / United States. Department of Transportation (Contributor) / United States. Federal Highway Administration (Contributor)
Created2016-09
Description
The primary mission of Arizona Highways magazine (AHM) is to promote travel and tourism in Arizona. The magazine has conducted a subscriber survey approximately every five years since the early 1990s, with the last survey conducted in 2009. However, no longitudinal analysis of survey data has ever been conducted to identify trends over time. This study has provided information regarding the reading habits of AHM subscribers, their interest in AHM editorial content, and their opinions regarding their subscriber experience. Findings from the study also provided insights into AHM customer loyalty, engagement, and purchasing behaviors; the perceived value of subscribership and trust in the AHM brand as a credible source for travel information; reader likelihood of recommending AHM to others; and the influence of AHM on tourism. Finally, this study also provided information obtained from former AHM subscribers, including their primary reasons for nonrenewal and suggestions regarding benefits or offers that would encourage them to reconsider subscribing. Recommendations were developed to assist AHM in adjusting its scope and focus to respond to changing reader expectations and preferences, particularly those in the 25-54 age group, and to support ongoing improvement in AHM's marketing and promotion activities and customer service processes. The recommendations are presented within a suggested implementation plan consisting of short-, mid-, and long-term actions. The research findings can be used by AHM to inform development of subscriber acquisition and retention strategies and to ensure that business planning, editorial, and marketing strategies align with reader expectations of AHM regarding the inherent trust and credibility of its brand.