The shifting geography of sprawl

Sprawl appears to be decreasing in North America. That is, new development is adding to the share of gridded or connected streets in the street network. However, in other parts of the world, new development is increasingly taking the form of gated communities, cul-du-sacs, and other disconnected street network designs indicative of sprawl—so say the authors of a paper recently published in the Proceedings of the National Academy of Sciences.

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 doesn’t provide a new standard, but it conveniently and thoroughly summarizes many approaches to the issue in one place.

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 doesn’t provide a new standard, but it conveniently and thoroughly summarizes many approaches to the issue in one place.

Big data enables new tool for analyzing and diagnosing traffic congestion

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 purpose, and other characteristics, and then focus on specific strategies to relieve demand.

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.

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.