Kristine Keeney Possible GIS Project Topics 1/28/14 Topic #1: Evaluating Neighborhood Accessibility in Everett, MA Summary At this initial stage of our Everett field project planning it seems that we may be looking at the City’s transportation network and its connectivity to points of interest on both a micro (neighborhood) and macro (regional) level. While many people use Everett has a means of getting from surrounding areas to Boston, an important consideration for our group is how people that are actually living in Everett are traveling to regular destinations. Despite the density of the neighborhoods found in the northern portion of the City, Everett is a very car-centric place. The dense neighborhoods and proximity to points of interest (banks, post office, schools, entertainment, grocery stores) could provide an opportunity to reimagine the current transportation network and street design to invite more people to choose alternative modes for short distance trips. As part of our field project I would like to use GIS analysis to identify which neighborhoods have a mix of residential and commercial land uses to narrow our study area. I would then like to explore other variables that may give our team a better idea of the current availability and quality of transportation services and amenities in certain neighborhoods. Government resources are inherently limited; therefore we will need to identify suitable neighborhoods for complete streets upgrades based on variables found in the literature including land use, density, and urban form. Spatial/Geographic Questions 1. Which neighborhoods in Everett contain areas of mixed land uses? 2. Which neighborhoods in Everett have a grocery store within walking distance (1/4 of a mile)? I think these are useful questions because they can help determine the suitability for applying complete streets design concepts to certain routes within a neighborhood in order to encourage active transportation to desired destinations. References 1. Krizek, K. J. (2003). Operationalizing neighborhood accessibility for land usetravel behavior research and regional modeling. Journal of Planning Education and Research, 22(3), 270-287. 1 Kristine Keeney Possible GIS Project Topics 1/28/14 There is a decent body of literature regarding neighborhood accessibility within the planning field. Krizek attempts to synthesize the different variables suggested by the literature and boil them down to three “tenets” of neighborhood accessibility: density, land use mix, and street/design. These principles can help to focus the scope of a project related to neighborhood accessibility in Everett. It also suggests using a 150-meter grid cells in order to achieve better pedestrian-scale resolution within the analysis. U.S. Census TIGER files were specifically mentioned as a data source. 2. Handy, S. L., & Clifton, K. J. (2001). Evaluating neighborhood accessibility: Possibilities and practicalities. Journal of Transportation and Statistics, 4(2/3), 67-78. This source took a look at variables related to quality of transportation services (walk time to stop, average wait times) to evaluate neighborhood (local) accessibility. It also considered network accessibility; taking into account a list of destinations, transit routes connecting residential areas to desired destinations, and the total travel time between neighborhoods and destinations. This piece of literature may prove useful for our field project as the client also wants us to evaluate the current transportation network as a whole and not just between neighborhoods and local destinations. The author also suggests taking into account amenities such as benches, shelters, lighting, and other factors including speed of passing traffic and crime levels. 3. Aultman-Hall, L., Roorda, M., & Baetz, B. W. (1997). Using GIS for evaluation of neighborhood pedestrian accessibility. Journal of Urban Planning and Development, 123(1), 10-17. This source will help to inform the project because it provides a detailed description of the methods used in order to calculate the shortest walking distance from individual residences to neighborhood destinations like the nearest school, open space, and transit stop. This piece of literature also used the results of the GIS analysis to evaluate the walking accessibility of three different residential design layouts, which may be useful in our field project if we are comparing design options. 4. Lei, T., & Church, R. (2010). Mapping transitābased access: Integrating GIS, routes and schedules. International Journal of Geographical Information Science, 24(2), 283-304. Lei and Church’s article will help to inform the transit portion of the neighborhood accessibility analysis by providing a framework through which to evaluate transit access using routing and timetable data to determine travel time between beginning and end points. 2 Kristine Keeney Possible GIS Project Topics 1/28/14 5. Iacono, M., Krizek, K. J., & El-Geneidy, A. (2010). Measuring non-motorized accessibility: Issues, alternatives, and execution. Journal of Transport Geography, 18(1), 133-140. This source contains an interesting table titled “Unique issues indicative to measuring non-motorized accessibility and proposed solutions;” which tries to highlight common issues in data availability related to trip purposes, land use, travel network, and walking and bicycle activities. The table also provides solutions or workarounds to working with available data to conduct effective analysis of alternative transportation accessibility. 6. Rajamani, J., Bhat, C. R., Handy, S., Knaap, G., & Song, Y. (2003). Assessing impact of urban form measures on nonwork trip mode choice after controlling for demographic and level-of-service effects. Transportation Research Record: Journal of the Transportation Research Board, 1831(1), 158165. This source is unique among the others due to the fact that it addresses mode choice and urban form in terms of non-work trips. While commuting is both central to peoples’ daily lives, as part of our field project we plan to look at local trips within Everett that will catch some commuting trips but will also include errands and weekend leisure trips as well. This work also acknowledges that there is significantly less data available about non-work trips, particularly in the case of the U.S. Census. 3