connectivity

Identifying isolated bike islands in cities, and the bottlenecks between them

By Michael Brenneis A new analytical approach could help identify streets most in need of improved facilities to better connect cycling networks. In Shanghai, researchers used high-resolution dockless bike-share trip data, and percolation theory, to identify clusters of cycling activity and the

Guidebook for Measuring Multimodal Network Connectivity (FHWA, February 2018)

Active transportation works best when networks are well-connected and destinations compactly arranged. Yet while the field has standard metrics and methods for many other aspects of the transportation system, it performs connectivity analyses as one-offs or not at all. FHWA’s new guide

Big data enables new tool for analyzing and diagnosing traffic congestion

By Chris McCahill StreetLight Data, which provides trip-making data from mobile devices and smartphone apps, has just launched a new interactive Congestion Analysis tool. The tool lets subscribers identify congested roads by time of day, break down the traffic in terms of trip length, trip

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

By Erin Evenhouse A high-traffic road can divide a community in more ways than one. Researchers haven’t always been able to show to 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

Safety in numbers and safety by design: A ‘virtuous cycle’

By Chris McCahill Two recent studies reiterate what makes safer walking environments: more pedestrians, according to one; and well-connected networks of local streets, according to the other. Taken together, these studies build upon growing evidence that the safety benefits of cities designed for

Texas DOT considers major highway removal in new plan for Dallas

By Chris McCahill Earlier this month, the Texas DOT released CityMAP, a document outlining how the agency might handle Dallas’ aging highways over the next 24 years. Most notably, it could lead to the removal of two major freeways from the downtown entirely. In one scenario, Interstate 30,

Re-Connect West Baltimore aims to bridge old neighborhood divides

By Robbie Webber Construction on a bridge project in West Baltimore will soon begin, and federal and local officials hope it will improve connectivity in a neighborhood that has long suffered from the legacy of urban highways built through low-income and minority communities. USDOT Secretary

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

Foxx decries highways’ effects on cities; US DOT can help the cause with rulemaking

By Eric Sundquist In a widely covered March 29 speech and interviews, U.S. Transportation Secretary Anthony Foxx described some of the negative effects that highway building has had on cities— particularly middle- and lower-income neighborhoods. The former Charlotte, N.C., mayor recalled his

CalTrans offers grant to study freeway conversion in Long Beach

By Chris McCahill Thanks to a quarter million dollar environmental justice grant from the California Department of Transportation, the City of Long Beach will now be able to study options for turning its Terminal Island Freeway into a local street, reclaiming 88 acres of land for a network of