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-> Smart Cities Dive reports as bike share expands, neighborhood perception is key. ( A recent study published in Transportation Research Part A: Policy and Practice on bike share systems in Chicago reinforced a persistent problem for new mobility options: Minority and low-income neighborhoods aren't always on board. (Where Does Active Travel Fit within Local Community Narratives of Mobility Space and Place?: Researchers used advanced machine learning to analyze focus groups of residents of 2 contrasting neighborhoods. Minority and low-income residents worry bike-sharing presence is yet another sign of a gentrifying neighborhood while more pressing needs, such as safety measures or expanded broadband are not addressed.

A study from the Transportation Research and Education Center surveyed residents in Chicago, IL; Philadelphia, PA and Bedford-Stuyvesant neighborhood in Brooklyn, NY and found people of color, or those with lower incomes, had more concerns about bike sharing than white or high-income people. (Breaking Barriers to Bike Share: Insights on Equity: Among those concerns were uncertainty about how it worked, and the cost and the fear that bike share would make their neighborhoods too expensive.

[See The National & International Scene for an initiative that successfully changed a neighborhood vocally against bike share to on that embraces it.]

-> Streetsblog USA reports research explains why pedestrians 'break the rules.' A University of IL masters student used time-lapse camera to study how pedestrians interact with drivers and the infrastructure along a dangerous stretch of a street in Rockford, IL. (Walkable Rockford: Exploratory Research of Pedestrian Collisions on Arterials in Rockford, Illinois: The time-lapse videos found pedestrians' behavior is influenced a lot by the environment: They're more likely engage in risky behavior -- like walking or rolling in the street or crossing mid-block -- when the pedestrian infrastructure is incomplete or lacking. People were adapting their behavior to the conditions, often in ways that put them at risk. (See footage:

-> A paper published in the Transportation Research Record: Journal of the Transportation Research Board outlines the method used to conduct a regional-scale, low-stress bicycle connectivity analysis. The goal was to evaluate the relative potential benefit of bicycle network improvements on street segments across the region. Levels of traffic stress were assigned to the road network and shortest paths were calculated between millions of places throughout the 5-county study area to identify segments that could most benefit low-stress bicycle connectivity. The results can be used as a screening tool to help planners efficiently prioritize segments for more detailed, local-level investigation and analysis. "Lowering Bicycle Stress One Link at a Time: Where Should we Invest in Infrastructure?"

-> A paper published in the Transportation Research Record: Journal of the Transportation Research Board proposes bicycle level of service models for the urban road links and signalized intersection approaches operating under heterogeneous traffic flow conditions prevailing in developing countries. Extensive data collection was carried out through field investigations, videography techniques, and perception surveys to inspect which parameters primarily affect the quality of bicycling in the mentioned facilities. Statistical analysis of modeled parameters has reported that the traffic volume and crossing pedestrians have the highest influences on the quality of bicycle traffic management at urban road links and intersection approaches, respectively. "Quality of Bicycle Traffic Management at Urban Road Links and Signalized Intersections Operating under Mixed Traffic Conditions"

-> A paper published in the Transportation Research Record: Journal of the Transportation Research Board examines the relationship between bicyclists' (first-person experienced) and video survey participants' (imagined) ratings of bicycling comfort and safety via real-world bike rides/surveys and a blocked experiment conducted through a web-based video survey. This suggests that imagined bicycling experiences seem less comfortable and safe compared with real experiences. "The Relationship between Experienced and Imagined Bicycling Comfort and Safety"

-> The National Cooperative Highway Research Program (NCHRP) reports during 2018 it completed 150 research projects, published 68 research products, and approved 58 new and continuation projects. (Annual Report 2018: This Annual Report provides a concise list of research published in 2018 and a list of all active projects, projects completed in 2018, and projects that were approved in 2018 but are not yet under contract. It also presents detailed information about how NCHRP operates with oversight by the AASHTO Special Committee on Research and Innovation. Since 2001, NCHRP Reports, Syntheses, Research Results Digests, Legal Research Digests, and Web-Only Documents have been posted on the TRB website in PDF format [on the NCHRP homepage (, look under "Publications" on the left].

lity police enforcement, and low-cost engineering on driving behavior.