This study investigated whether highways acted as barriers to gene flow for pronghorn in northern Arizona. DNA samples from 132 pronghorn were analyzed using eight polymorphic microsatellite loci. Samples represented animals living on opposite sides of US Route 89 (US 89) and State Route 64 (SR 64). Two different modeling approaches indicated that both US 89 and SR 64, and to a lesser extent US Route 180 (US 180), acted as barriers to gene flow. The genetic structuring caused by highways, especially across US 89, is consistent with behavioral data that demonstrated pronghorn rarely cross this highway. This study found no evidence of inbreeding or reduced genetic variation in any of the populations examined, but those effects may take longer to appear. Based on these results, the researchers recommend future genetic monitoring of these populations or assessment of genetic variation across highways with larger traffic volumes or longer histories to determine whether the barrier effects documented here lead to loss of genetic diversity.

The Arizona transportation history project was conceived in anticipation of Arizona’s centennial, which will be celebrated in 2012. Following approval of the Arizona Centennial Plan in 2007, the Arizona Department of Transportation recognized that the centennial celebration would present an opportunity to inform Arizonans of the crucial role that transportation has played in the growth and development of the state.

The report consists of a historical narrative and a series of topical essays. The seven-chapter historical narrative is a history of Arizona’s highways that extends from the pre-Columbian era to the present. The 14 topical essays extend the scope of the history beyond the state’s highway system. They include overviews of the development of other transportation modes (railroads, aviation, and urban transit), a brief history of highway pavements, a lighthearted look at the motoring experience during the 1920s and 1930s, and an exploration of how changes in transportation infrastructure affected some Arizona communities. The topical essays also provide additional historical information on bridges, urban freeways, the Interstate system, ADOT and its predecessor agencies, and famous roads such as U.S. Route 66, U.S. Route 89, the Black Canyon Highway, and the Beeline Highway.

The report also includes a timeline of transportation-related developments. This chronology not only provides an accessible overview of Arizona’s transportation history; it also places that history in a larger context by including transportation-related developments from the rest of the nation and around the world. Finally, the report contains a guide to archives in Arizona that hold significant collections of historical photographs related to the state’s transportation history, a bibliography of published historical sources related to the history of highways in Arizona, and a discussion of how the historical narrative and topical essays could be used to produce publications and media that would be made available to the public.

Majorities of all panelists statewide named crime/public safety as among the chief indicators of “quality of life” and as among the top issues their officials should address. Nearly half said they thought crime was getting worse. But looking beneath these overall views reveals a pair of seeming paradoxes. The first is that, despite their strong concerns about crime, most respondents also said that their own neighborhoods are relatively safe places, and that they felt safe walking alone at night. The second paradox is that, generally speaking, those Arizonans who are less personally liable to become victims seem more emphatic in their concern about crime than those who seem more likely to be victimized.

When they’re not sleeping, working, or tending to other duties, Arizonans keep busy. From museum tours to farmer’s markets, softball to spiritual quests, they spend their personal time on a wide array of different activities, from high culture to casual pastime. And—little surprise here—they tend to like to do them outside. These findings arise from a survey asking Arizonans about their leisure-time pursuits, leaving it for them to decide what they consider to be “arts and culture” or “leisure activities and pastimes.” In response, 45% of panelists say they regularly attend at least one type of arts and cultural event, and 77% say they say they regularly participate in leisure activities and pastimes.

Good jobs and good schools—few would disagree that these are essential elements of a secure and rewarding life. Both are also vital components of a healthy society: Good jobs create revenue to support quality schools, which in turn produce a superior workforce to fill those jobs. Based on survey panelists’ responses, most Arizonans seem to feel that they’re doing well on the employment front, but not quite so well concerning education.

Arizonans have gained a reputation for their low opinion of government, despite -- or perhaps because of -- the major role played by all governmental levels in residents’ daily lives. This view was reflected in the responses to this segment of the survey, as panelists generally gave low ratings to the government services they were asked to judge. This was especially true of lower-income panelists. But the respondents’ low ratings might not always have been based upon personal experience: Few panelists said they had sought information from government or community agencies. This may be due to the increasing popularity of the Internet as a self-help source, but it could also mean that relatively few residents need the services or know they are available. In any case, more than half of those who did seek information said they were satisfied with the result. Panelists were not dismissive of all collective efforts at social betterment. They expressed high levels of agreement that good community-based programs can prevent many social problems, from drug and alcohol addiction to child abuse and juvenile delinquency. Asked how they themselves would distribute public funds for social problems, most respondents choose programs for children, affordable housing, and health insurance.