Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Research in Progress (RIP) https://rip.trb.org/Images/PageHeader-wTitle-RIP.jpg https://rip.trb.org/ Equity Issues in Electronic Vehicle Adoption https://rip.trb.org/View/2459050 Thu, 21 Nov 2024 17:06:31 GMT https://rip.trb.org/View/2459050 Enhancing Road Safety for All Road Users https://rip.trb.org/View/2431646 Thu, 19 Sep 2024 14:39:50 GMT https://rip.trb.org/View/2431646 Transportation Needs and Economic Opportunities for Service Employees of Socioeconomically Disadvantaged Populations in Las Vegas Hospitality and Tourism Industry https://rip.trb.org/View/2422811 Tue, 27 Aug 2024 17:07:47 GMT https://rip.trb.org/View/2422811 Refining C3 Context-classification Criteria for Low-income and Minority Populations https://rip.trb.org/View/2404176 Thu, 18 Jul 2024 11:12:55 GMT https://rip.trb.org/View/2404176 Strategies to Improve Access to Driver Education and Training for Novice Drivers https://rip.trb.org/View/2394426 Tue, 18 Jun 2024 16:51:03 GMT https://rip.trb.org/View/2394426 Addressing Spatial Mismatch in Labor and Transportation Access with Connected Automated Shuttles to Meet the Needs of Low-Income Populations https://rip.trb.org/View/2325914 Tue, 23 Jan 2024 17:21:04 GMT https://rip.trb.org/View/2325914 Spatiotemporal Trends in Pedestrian Crashes https://rip.trb.org/View/2325688 Mon, 22 Jan 2024 09:42:28 GMT https://rip.trb.org/View/2325688 Improving Livability: Identifying Operational and Access Barriers to Active Transportation in Connecticut Communities https://rip.trb.org/View/2321727 Tue, 16 Jan 2024 12:18:09 GMT https://rip.trb.org/View/2321727 Disparities in Access to Driver Education for Teens as a Health and Mobility Equity Issue https://rip.trb.org/View/2292667 Tue, 21 Nov 2023 18:07:37 GMT https://rip.trb.org/View/2292667 Understanding Transit User Experience and Expectations in Under-served Communities https://rip.trb.org/View/2292690 80 F or below <40 F). We ask: which capital improvements have the biggest return on investment at bus stops that might reduce the negative experience of waiting for transit? Methodologically, by relying on video/phone-based interviews with transit experts across the United States, we are interested in learning agency-side responses to effective investments at bus stops, including constraints that agencies face. We will also conduct a series of focus groups and/or interviews with bus riders, particularly those in low-income and under-served communities, to hear transit experiences and learn about the specific needs of riders. This work will be conducted in the Denver region in coordination with the Regional Transportation District. Based on this body of evidence, we will design and implement a national-wide survey, built on a choice-experiment framework, that will test tradeoffs between operational improvements (e.g., increasing frequency), various types of bus top investments (e.g., shelters, benches, ADA-compliant ramps, real time information, lighting, safety call buttons, cameras, among others), and other programmatic investments (e.g., fare-free transit). We will vary the weather attributes in the choice set to seek better insights from riders who experience daily and seasonal variations differently than automobile travelers. This approach will control respondents’ preference ordering as well as internal contradictory among preferences. By asking respondents to evaluate trade-offs, the results will better speak to preferences as well as facilitate a weighted economic benefit analysis where we can score preferences based on dollars spent. By trying to decipher how various investments impact the value of wait time, we will create a generalizable set of findings that can apply across various situations and contexts. ]]> Mon, 20 Nov 2023 16:41:51 GMT https://rip.trb.org/View/2292690 Is Transit-Oriented Development Affordable for Low- and Moderate-income Households (in Terms of Housing and Transportation)? https://rip.trb.org/View/2292743 Mon, 20 Nov 2023 16:27:55 GMT https://rip.trb.org/View/2292743 Refining C3 Context-Classification Criteria for Low-Income and Minority Populations https://rip.trb.org/View/2256336 Thu, 28 Sep 2023 08:20:16 GMT https://rip.trb.org/View/2256336 Digitizing Bicycle and Pedestrian Treatments for Promoting Active Transportation Safety https://rip.trb.org/View/2195112 Mon, 12 Jun 2023 19:56:26 GMT https://rip.trb.org/View/2195112 Synthesis of Information Related to Transit Practices. Topic SB-40. Low-Income Transit Discount Provision at Public Transit Agencies in the United States https://rip.trb.org/View/2190463 Fri, 09 Jun 2023 19:15:54 GMT https://rip.trb.org/View/2190463 Access to Food in a Severe Prolonged Disruption: The Case of Grocery and Meal Shopping During the COVID-19 Pandemic https://rip.trb.org/View/2087516 Wed, 21 Dec 2022 12:17:42 GMT https://rip.trb.org/View/2087516