SSTI releases Connecting Sacramento: A trip-making and accessibility study

For several years, SSTI has worked to advance best practices in the use of two emerging technologies: accessibility metrics and trip-making data from mobile devices. Our recently completed study, Connecting Sacramento, was an essential part of that effort. This study brings together these technologies and tests their application in identifying and prioritizing first- and last-mile-connections to transit, among other uses.

Connecting Sacramento

Connecting Sacramento is the first study to incorporate both accessibility analysis and tripmaking data, including data from multiple sources, and assess how they can be used together to guide transportation- and land use-related decisions. This study focused specifically on opportunities to improve first- and last-mile connections to light rail transit in Sacramento, but its findings are widely applicable.

Accessibility in practice (SSTI and Virginia Office of Intermodal Planning and Investment, 2017)

Planning agencies and transportation decision makers often talk about the importance of improving access to destinations, but they rarely have the tools or resources to measure accessibility and incorporate those metrics into decision making. This report guides agencies through that process.

A toolkit to measure and value “community severance” due to traffic

A high-traffic road can divide a community in more ways than one. Researchers haven’t always been able to show what extent such roads can harm a community’s access, health, or quality of life. A new study outlined in the latest volume of the Journal of Transport and Health looked at one corridor to test tools to measure just that.

Accessibility for all: Open source options for measuring access to destinations

As highlighted in two recent SSTI webinars in March and April of this year, accessibility measures are becoming more useful in practice. The most notable examples rely on proprietary data and methods, but open source approaches are also gaining traction, while highlighting the need for more reliable, open data. Accessibility measures describe how easily people can reach destinations, usually in terms of travel time, given the existing transportation system and land use patterns.

New research reinforces the importance of the built environment to cycling mode share

A recently published study from Montreal sheds new light on the importance of the built environment in influencing bicycle commuting and the resulting impacts on greenhouse gas emissions. The researchers also estimated the effect of bicycle infrastructure accessibility on cycling mode share. They estimated the effect of the new bicycle infrastructure as yielding a 1.7 percent reduction in transportation GHG emissions, roughly equivalent to the estimated effects of replacing the city’s buses with hybrid models and electrifying the city’s commuter trains.

Job type and location may keep low-wage workers from using transit

Affordable transit service can be a major asset to low-wage workers, but characteristics of their jobs—such as where and when they work—may keep them from using those services. New research in Toronto focuses more attention on the work end of the trips in determining how well transit can meet workers’ needs and finding ways to increase transit effectiveness and ridership.

AllTransit: Transit connectivity, accessibility, and frequency

The Center for Neighborhood Technology and TransitCenter has released its AllTransit tool that assists in analysis, planning, and visualization of transit systems. AllTransit stands out through its ability to analyze a variety of metrics quickly, producing outputs in the form of GIS-based maps, charts, and tables that can be employed to educate policy makers, planners, agencies, advocates, and the general public to make better informed choices about transit operations, service planning, and infrastructure investments.

AllTransit: Transit connectivity, accessibility, and frequency

The Center for Neighborhood Technology and TransitCenter has released its AllTransit tool that assists in analysis, planning, and visualization of transit systems. AllTransit stands out through its ability to analyze a variety of metrics quickly, producing outputs in the form of GIS-based maps, charts, and tables that can be employed to educate policy makers, planners, agencies, advocates, and the general public to make better informed choices about transit operations, service planning, and infrastructure investments.

Trip-making data, TDM, and connectivity in Northern Virginia (SSTI and Michael Baker International, 2016)

Commercially available GPS data offers valuable new insight about trip origins, destinations, and routes, including short trips that travel demand models often cannot capture. Using this data, SSTI worked with Michael Baker International, the Virginia DOT, and local stakeholders to identify opportunities for managing travel demand and improving connectivity throughout Northern Virginia. This final report describes the full data set and 17 selected case studies, along with recommended projects and policies, estimated costs, and benefits for each.