Are Cities Prepared for Autonomous Vehicles?

Problem, research strategy, and findings: Local government policies could affect how autonomous vehicle (AV) technology is deployed. In this study we examine how municipalities are planning for AVs, identify local characteristics that are associated with preparation, and describe what effects bureaucrats expect from the vehicles. We review existing plans of the 25 largest U.S. cities and survey transportation and planning officials from 120 cities, representative of all municipalities with populations larger than 100,000. First, we find that few local governments have begun planning for AVs. Second, cities with larger populations and higher population growth are more likely to be prepared. Third, although local officials are optimistic about the technology and its potential to increase safety while reducing congestion, costs, and pollution, more than a third of respondents worried about AVs increasing vehicle miles traveled and sprawl while reducing transit ridership and local revenues. Those concerns are associated with greater willingness to implement AV regulations, but there is variation among responses depending on political ideology, per capita government expenditures, and population density.

Takeaway for practice: Municipal governments’ future approaches to AV preparation will likely depend on the characteristics of city residents and local resources. Planners can maximize policy advancement if they work with officials in other cities to develop best practices and articulate strategies that overlap with existing priorities, such as reducing pollution and single-occupancy commuting.     

Regulatory Practices of Urban Agriculture: A Connection to Planning and Policy

Problem, research strategy, and findings: Municipalities across the United States are gradually recognizing urban agriculture as an integral part of planning, land use, and zoning ordinances. We review the literature on the regulation of urban agriculture at a moment when policy and regulatory vacuums exist and the acceptance and integration of urban agriculture is uneven. We review the current regulatory practices of 40 metropolitan and 40 micropolitan municipalities in the 4 U.S. Census regions. We find that municipalities are filling policy vacuums by adopting enabling ordinances (zoning ordinances, land use designations, resolutions), regulations on urban agriculture production (backyard animals, built structures, practitioner responsibility), and fiscal policy instruments (restrictions on sales of agricultural products, tax abatement, urban agriculture fees). Our findings support local planning practitioners in filling regulatory gaps, practitioners of urban agriculture in seeking how it’s done elsewhere, and researchers in discerning new applied and basic research projects. We identify 3 principal knowledge gaps: Planners need a complete typology of regulatory possibilities; a better understanding of how local, state, and federal legislations constrain or enable urban agriculture; and empirical evidence of the economic, social, and environmental impacts of urban agriculture.

Takeaway for practice: Planners should assess existing urban agricultural practices and consider which regulatory frameworks best support multiple local goals, incorporating a concern with urban agriculture into ongoing activities, deploying existing or innovative land use tools, facilitating institutional cooperation, and promoting inclusive decision making and community engagement.     

State of the Art in Planning for College and University Campuses: Site Planning and Beyond

Problem, research strategy, and findings: Colleges and universities have been planning their campuses for centuries, yet scholars have conducted little empirical research regarding the nature of campus planning in the United States. We review recent scholarship on campus planning, discovering that it is dominated by case studies (sometimes in edited collections) and some comparative studies. In this review we organize the literature into 3 geographic scales: the campus per se (or campus park), the campus–­community interface, and the larger campus district. The literature addresses 5 topics: land use, design, sustainability, economic development, and collaboration. Most of the studies focus on research-oriented universities in metropolitan locations. The literature emphasizes how campus master planning can support student learning, how design and building guidelines can make a campus more cohesive, and how campuses are adopting sustainable development and operations. At the campus–­community interface, the research documents how some colleges and universities have expanded beyond their traditional boundaries, invested in local economic development, and worked with their communities to improve transportation and reduce environmental impacts. Studies of campus district planning emphasize community adoption of development regulations and code enforcement procedures to reduce the impact of students living in nearby neighborhoods. The literature stresses the importance of partnerships, collaboration, and enhanced communications between the university and the community.

Takeaway for practice: University planners should continue to focus on site design that reinforces student learning and environmental sustainability and on community interface planning that supports economic development and reduces environmental impacts. City planners should expand campus district planning to address a broad array of issues and opportunities. Both university and city planners should facilitate collaboration between their institutions. Scholars should study a wide range of colleges and universities, including 2-year as well as 4-year institutions and those in nonurban settings.     

When Tourists Move In: How Should Urban Planners Respond to Airbnb?

Problem, research strategy, and findings: The online accommodation platform Airbnb has expanded globally, raising substantial planning and regulatory concerns. We ask whether Airbnb rentals generate significant neighborhood impacts like noise, congestion, and competition for parking; reduce the permanent rental housing supply and increase rental prices; or provide income opportunities that help “hosts” afford their own housing. We focus on Sydney, the largest region in Australia with 4.4 million people in 28 individual municipalities, which has experienced both rapidly rising housing costs and exponential growth in Airbnb listings since 2011. Airbnb’s growth has raised concerns serious enough to result in a formal Parliamentary Inquiry by the state of New South Wales. We analyze stakeholder submissions to this inquiry and review local planning regulations, Airbnb listings data, and housing market and census statistics. We find that online homesharing platforms for visitor accommodations blur traditional boundaries between residential and tourist areas so Airbnb listings may fall outside of existing land use regulations or evade detection until neighbors complain. Our findings are constrained by the difficulties of monitoring online operations and the rapid changes in the industry.

Takeaway for practice: Planners and policymakers in cities with increasing numbers of Airbnb rentals need to review how well local planning controls manage the neighborhood nuisances, traffic, and parking problems that may be associated with them while acting to protect the permanent rental housing supply. Local planners need to ensure that zoning and residential development controls distinguish between different forms of short-term Airbnb accommodation listings and their potential impacts on neighborhoods and housing markets.     

The Link Between Local Comprehensive Plans and Housing Affordability: A Comparative Study of the Atlanta and Detroit Metropolitan Areas

Problem, research strategy, and findings: I question whether the strength of affordable housing policies in local comprehensive plans is associated with better affordable housing outcomes, which I measure as a decrease in the share of low-income households who spend more than 30% of their income for housing, otherwise known as cost-burdened households. I first assess the strength of affordable housing policies in 58 local comprehensive plans, counting the number of—and degree of coercion in—those affordable housing policies. I then analyze the relationship between the strength of affordable housing policies and changes in the share of low-income households with cost burden. I find that the strength of affordable housing policies is higher in the Atlanta (GA) metropolitan area than in the Detroit (MI) metropolitan area. I also find that the strength of affordable housing policies is positively associated with a decrease in the share of low-income households paying more than 30% of their income for housing in the Atlanta metropolitan area. I do not find a comparable relationship between plan strength and housing outcomes in the Detroit metropolitan area. I also find that the state role matters: Georgia provides more support and guidance for local comprehensive planning, and for affordable housing policies in those plans, than does Michigan.

Takeaway for practice: Planners should continually promote local comprehensive plans that include more and stronger affordable housing policies and advocate for greater state support for comprehensive planning and affordable housing policies because these appear to lead to a greater likelihood of implementing stronger plans.     

Special Ethical Considerations for Planners in Private Practice

Problem, research strategy, and ­findings: Planners must constantly consider the ethics of their professional behavior, yet few studies have specifically investigated the ethical landscape for those planners working in private practice, assuming that all members of the profession are subject to similar ethical considerations. We investigate the particular ethical considerations faced by planners in private practice by interviewing owners of 10 planning consulting firms. Our sample size is very small and limited to three states, which limits the generalizability of the study. We find that private practice planners routinely experience ethical conflicts related to disclosure of information, balancing uneven benefits among stakeholders, interests of the client, and ethics of firm competition. Alhough planners mostly navigate everyday ethical concerns with confidence, they face ethical challenges in managing client relationships when values conflict, and in competing with other firms.

Takeaway for practice: We find that challenging ethical situations arise for private sector planners on a routine basis. The planners we interview feel that they are able to identify ethical pitfalls and choose the correct course of action, but more research is needed to understand the scope and nature of private practice ethical challenges, and to determine whether more education or enforcement would be effective solutions to between-firm conflicts.     

Crowdsourcing Bike Share Station Locations

Problem, research strategy, and findings: Planners increasingly involve stakeholders in co-producing vital planning information by crowdsourcing data using online map-based commenting platforms. Few studies, however, investigate the role and impact of such online platforms on planning outcomes. We evaluate the impact of participant input via a public participation geographic information system (PPGIS), a platform to suggest the placement of new bike share stations in New York City (NY) and Chicago (IL). We conducted 2 analyses to evaluate how close planners built new bike share stations to those suggested on PPGIS platforms. According to our proximity analysis, only a small percentage of built stations were within 100 feet (30?m) of suggested stations, but our geospatial analysis showed a substantial clustering of suggested and built stations in both cities that was not likely due to random distribution. We found that the PPGIS platforms have great promise for creating genuine co-production of planning knowledge and insights and that system planners did take account of the suggestions offered online. We did not, however, interview planners in either system, and both cities may be atypical, as is bike share planning; moreover, multiple factors influence where bike stations can be located, so not all suggested stations could be built.

Takeaway for practice: Planners can use PPGIS and similar platforms to help stakeholders learn by doing and to increase their own local knowledge to improve planning outcomes. Planners should work to develop better online participatory systems and to allow stakeholders to provide more and better data, continuing to evaluate PPGIS efforts to improve the transparency and legitimacy of online public involvement processes.     

Incentivize It and They Will Come? How Some of the Busiest U.S. Airports Are Building Air Service With Incentive Programs

Problem, research strategy, and findings: In the 1990s, the Federal Aviation Administration (FAA) prohibited airport sponsors (local authorities managing airports) from diverting airport revenue to general municipal budgets and allowed the busiest airports to create air service incentive programs (ASIPs) to induce airlines to launch new air service. These incentive programs have not been evaluated, although planners need information on their long-term effectiveness. Few data, however, are available on ASIP programs; I created a database to identify which airports have ASIPs, which new airline services received incentives, and the services that continued after incentives ended. I find that 26 of 44 airports with ASIPs that recruited new routes spent $171.5 million combined between 2012 and the first quarter of 2015, 40% on routes that were not retained when the incentive ended. The busiest airports in the largest cities with growing populations, relatively independent of local economic status, were most able to recruit and retain new airline services. Small and medium airports, particularly in stagnant areas, were not able to recruit and retain new air services.

Takeaway for practice: The FAA should require airport sponsors to submit comprehensive information on their ASIP programs—the routes recruited and retained, as well as detailed estimates of the costs and benefits of each route—to provide planners with needed information. The FAA also should loosen the constraints on the use of non-aeronautical airport revenues so that communities can choose between spending on incentives to increase air service and other programs to increase local economic development.     

Motivations and Strategies for Bicycle Planning in Rural,Suburban, and Low-Density Communities: The Need for New Best Practices

Problem, research strategy, and findings: Many planners view bicycles as a critical component of sustainable urban transportation, but assumptions about cycling derived from urban places may not translate to the social, political, and built environment contexts outside of cities. Our study focuses on the motivations and strategies that rural, small, and low-density (RSLD) communities have for investing in bicycle systems; our goal was to learn what kind of technical assistance such communities might need to realize their cycling goals. We conducted in-depth interviews in 10 communities that received grants from a Kaiser Permanente program in Colorado to increase cycling.

Takeaway for practice: These 10 cases present a conflict between a recreational or quality-of-life approach to increasing cycling in RSLD communities and a transportation approach more common in urban areas, which stresses the use of cycling to supplement or replace auto travel for purposive trips. Most RSLD cities did not have the political or cultural support to plan for and begin constructing major cycling infrastructure for either recreational or transportation cycling. Most need best practices to educate local stakeholders on the value of cycling to support economic development, increase tourism, and improve property values without significantly reducing auto access. Planners in RSLD places also need special guidance for addressing the needs of riders with diverse environmental values and those from disadvantaged communities.     

Planning for Happy Neighborhoods

Problem, research strategy, and findings: There is increasing interest in planning for healthy communities, but little is known about how planners can affect mental health and wellbeing in neighborhoods, although much is known about how planners can affect physical health through neighborhood design. In this review essay, we draw lessons from a cross-disciplinary set of studies to reveal how the neighborhood built environment may affect one aspect of residents' wellbeing: happiness. Providing residents access to open, natural, and green space may directly increase their happiness. Incorporating design features that allow for social interaction and safety also may promote residents' happiness.

Takeaway for practice: Planners have the capacity to contribute to greater opportunities for happiness in neighborhoods. Strategies include integrating happiness-related indicators into health impact assessments and employing a new, participatory neighborhood planning process, the Sustainability Through Happiness Framework.     

Racial and Class Bias in Zoning: Rezonings Involving Heavy Commercial and Industrial Land Use in Durham (NC), 1945–2014

Problem, research strategy, and findings: In this study I investigate whether zoning has traditionally protected communities of color from the dangers of heavy commercial and industrial use to the extent that it has protected White communities. I evaluate whether upzonings—changes from less intensive uses to more intensive heavy commercial and industrial uses—disproportionately occurred in African-American and low-income neighborhoods in Durham (NC) from 1945 to 2014, and I evaluate the comparative impact of downzonings. I use the contemporary demographics of the census tracts where these rezonings occurred and qualitative evidence from public hearings, plans, and other relevant primary materials. I find that before 1985, the pattern of rezonings in Durham had negative implications for African-American areas in particular. Environmental justice efforts in the 1980s, followed by gentrification, caused the city’s planners and local elected officials to change course.

Takeaway for practice: Planners have an ethical obligation to promote equity, and their ability to do so depends on understanding sources of social injustice. In Durham, race historically played a role in upzonings and downzonings involving heavy commercial and industrial uses. The city also demonstrates that planners and local elected officials can successfully intervene to end disparities in zoning practice across communities of different racial characteristics. Assessing past zoning practices in other cities may reveal similar records of bias and help planners to present cases for corrective action.     

Do Strict Land Use Regulations Make Metropolitan Areas More Segregated by Income?

Problem, research strategy, and findings: Income segregation has risen in each of the last four decades in U.S. metropolitan areas, which can have lifelong impacts on the health, economic productivity, and behaviors of residents. Although it is widely assumed that local land use regulations—such as minimum lot sizes and growth controls—exclude low-income households from wealthier neighborhoods, the empirical research is surprisingly limited. We examine the relationship between land use regulation and segregation by income using new measures for the 95 biggest cities in the United States. We find that density restrictions are associated with the segregation of the wealthy and middle income, but not the poor. We also find that more local pressure to regulate land use is linked to higher rates of income segregation, but that more state control is connected to lower-income segregation.

Takeaway for practice: Density restrictions do drive urban income segregation of the rich, not the poor, but should be addressed because rich enclaves create significant metropolitan problems. Planners at the local level need assistance from regional and state efforts to ameliorate income segregation. Inclusionary housing requirements have a greater potential to reduce income segregation than bringing higher-income households into lower-income parts of the city. Finally, comprehensive and consistent data on the impacts of local land use regulations should be collected to inform future research and planning practice.     

Do Practicing Planners Value Plan Quality? Insights From a Survey of Planning Professionals in Ontario,Canada

Problem, research strategy, and findings: Researchers have developed conceptualconsensus on core plan characteristics that contribute to plan quality, but rarely assess how practitioners view plan quality. I explore how Canadian planners view the characteristics thought to create quality plans. I asked planners in 290 municipalities across southern Ontario (Canada) their view of the importance of plan quality and asked that they identify additional plan quality characteristics, rate the infl uence of various plan characteristics, and explain why they omitted certain characteristics in their offi cial plans. I find that practitioners valued quality plans because they facilitate implementation and help inspire the community while adding credibility and legitimacy to planning processes and the planning profession. Planners did not value all plan elements equally; they felt that clear and enforceable polices were crucial, but that it was less important to report participation in plan preparation or discuss monitoring or interorganizational cooperation in the offi cial plan. Planners did not always include important plan quality elements in their offi cial plans because they lacked suffi cient resources to prepare comprehensive plans and rarely signifi – cantly updated older plans. These case study findings may not be generalizable to other jurisdictions in Canada or internationally, but still offer useful insights.

Takeaway for practice: Scholars should ensure that planning practitioners have a key role in shaping understanding of plan quality. Academics and practitioners should work together to create refl ective practitioners who use plan quality characteristics to guide them as they create or update plans. The profession needs to better train current and future planners on how to prepare and evaluate quality plans through improvements in planning curricula and professional development courses offered by the American Planning Association and the Canadian Institute of Planners.     

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0: Four Reasons Why AICP Needs an Open Data Ethic

Problem, research strategy, and ­findings: Computing and digital technologies have changed how data are created, analyzed, and communicated. The American Institute of Certified Planners (AICP) Code of Ethics has no guidelines for planners working with emerging urban informatics. Here we make a theoretical argument based on the premise of epistemic justice: The idea that how planners collect, manage, disseminate, and use data all bear on justice in democratic decision making about cities.

Four reasons exist for planners to prioritize open data in our formal code of ethics. First, emerging Big Data from urban informatics have a steep learning curve that potentially exacerbates the gaps in power and political voice between experts and nonexperts. Second, algorithms have come to govern an increasing portion of human life and cities, and planners should ideally be enabling residents in their ability to scrutinize, understand, and challenge managerial algorithms that have become prevalent in e-government. Third, urban informatics potentially alter the economic and community development of cities and the urban experience. Fourth and finally, ubiquitous data sensing, new consumer tracking capabilities, obscure and readily skipped terms of use agreements, and rapidly changing technologies make cities into potentially coercive data collection environments.

Takeaway for practice: Substantial barriers exist to open data ethics in an information economy where exclusive access to data can drive profits. Emerging data systems can consolidate power in the hands of experts and large private firms to the exclusion of citizens and small, independent firms. Open data and code vitiates those problems to a limited degree, and AICP could benefit practitioners by adopting an open data ethic.     

The Intersection of Planning,Urban Agriculture,and Food Justice: A Review of the Literature

Problem, research strategy, and findings: We draw on a multidisciplinary body of research to consider how planning for urban agriculture can foster food justice by benefitting socioeconomically disadvantaged residents. The potential social benefits of urban agriculture include increased access to food, positive health impacts, skill building, community development, and connections to broader social change efforts. The literature suggests, however, caution in automatically conflating urban agriculture’s social benefits with the goals of food justice. Urban agriculture may reinforce and deepen societal inequities by benefitting better resourced organizations and the propertied class and contributing to the displacement of lower-income households. The precariousness of land access for urban agriculture is another limitation, particularly for disadvantaged communities. Planners have recently begun to pay increased attention to urban agriculture but should more explicitly support the goals of food justice in their urban agriculture policies and programs.

Takeaway for practice: We suggest several key strategies for planners to more explicitly orient their urban agriculture efforts to support food justice, including prioritizing urban agriculture in long-term planning efforts, developing mutually respectful relationships with food justice organizations and urban agriculture participants from diverse backgrounds, targeting city investments in urban agriculture to benefit historically disadvantaged communities, increasing the amount of land permanently available for urban agriculture, and confronting the threats of gentrification and displacement from urban agriculture. We demonstrate how the city of Seattle (WA) used an equity lens in all of its programs to shift its urban agriculture planning to more explicitly foster food justice, providing clear examples for other cities.     

Sustaining the Commons: The Coercive to Cooperative,Resilient, and Adaptive Nature of State Comprehensive Water Planning Legislation

Problem, research strategy, and findings: States need guidance to adopt comprehensive water planning legislation that can affect urban planning and built form. Current state legislation, however, may not yet incorporate emerging water resource paradigms that promote sustainable water management at the state and substate levels. Planners can improve existing state legislation, but need guidance on incorporating the latest thinking on resilience, adaptive capacity, and sustainable commons management. I identify the 26 states with comprehensive water planning legislation, and analyze that legislation using a new assessment tool that builds on the coercive versus cooperative metric (CvCA). I determine where each state's water planning legislation falls on a coercive versus cooperative spectrum, and the extent to which each state's legislation incorporates sustainable commons management (SCM) and social–ecological resilience (SER) mechanisms and attributes. Most of the 26 states with comprehensive water planning legislation balance coercive and cooperative approaches to achieve state and substate water plans, although research suggests that planning is most effective when legislation is more cooperative. Moreover, most have not codified SCM and SER mechanisms into state water planning legislation, suggesting that the plans that follow may lack the adaptive capacity to increase the resilience of the water system. Research limitations include the single data source and potential interpretive coding bias.

Takeaway for practice: Planners can advocate for new or improved state water legislation that incorporates integral adaptive and resiliency concepts, encouraging states to include the fundamental features of the social–ecological system that lead to better water management.     

The Growing Role of Transportation Funding in Regional Habitat Conservation Planning

Problem, research strategy, and findings: Regional conservation initiatives struggle to meet funding needs when complying with the Endangered Species Act (ESA) of 1996 and need money early to pay for required planning and to acquire land to mitigate the impact of development. Transportation agencies struggle to comply with the ESA and have increasingly been willing to fund regional habitat conservation plans (RHCPs) to do so. We review documents from 22 RHCPs and interview representatives of 16 RHCPs to understand how transportation agencies have contributed to funding RHCPs. We find that transportation agencies mitigate their impacts and provide early and consistent financing to facilitate the planning process, help RHCPs establish initial conservation preserves, and allow RHCPs to capitalize on lower land prices during downturns in the development market. We only sample RHCPs in a few states, however, and these examples may not comply with laws in others. Many of the cases studied are recent; time is needed to assess their long-term success. We recommend further study to assess applications to sectors beyond transportation and beyond the areas we studied.

Takeaway for practice: Transportation agencies have struggled to meet environmental requirements and habitat conservation agencies have typically considered transportation agencies threats to the environment. Where adversarial relationships can be overcome, partnerships between transportation and conservation programs can effectively finance habitat conservation while facilitating capital investments in transportation systems.     

City Managers Have Ethics Too? Comparing Planning and City Management Codes of Ethics

Problem, research strategy, and ­findings: Planners and city and county managers regularly work together but often face ethical conundrums. We compare the codes of ethics from their two U.S. professional organizations—the American Institute of Certified Planners (AICP) and the International City/County Management Association (ICMA)—and then apply the AICP Code of Ethics to five published ICMA ethics scenarios to determine how the two professions might respond differently in each. We find common professional values in the codes: equality, creativity, and diligence. The AICP Code, however, emphasizes direct democracy and engaging citizens, while the ICMA Code emphasizes representative democracy and engaging elected officials. Code values and actual behaviors are not always related, but we believe our work shows the source of ethical challenges and power struggles between managers and planners.

Takeaway for practice: Planners can learn from ICMA’s Code to focus on elected officials. Managers can learn from AICP’s Code to focus on citizens. Planners and managers can overcome their professional biases and blind spots by understanding the ethical codes under which the other profession operates. Planners work from the outside in, managers from the inside out; working together, they can improve the communities they serve.