| Do transportation network companies decrease or increase congestion? GD Erhardt, S Roy, D Cooper, B Sana, M Chen, J Castiglione Science advances 5 (5), eaau2670, 2019 | 458 | 2019 |
| Why is traffic congestion getting worse? A decomposition of the contributors to growing congestion in San Francisco-Determining the Role of TNCs S Roy, D Cooper, A Mucci, B Sana, M Chen, J Castiglione, GD Erhardt Case Studies on Transport Policy 8 (4), 1371-1382, 2020 | 34 | 2020 |
| TNCs & congestion J Castiglione, D Cooper, B Sana, D Tischler, T Chang, GD Erhardt, S Roy, ... | 34 | 2018 |
| State-level comparison of traffic fatality data in consideration of marijuana laws R Hamzeie, I Thompson, S Roy, PT Savolainen Transportation research record 2660 (1), 78-85, 2017 | 15 | 2017 |
| Do transportation network companies decrease or increase congestion? Sci. Adv. 5 (5), eaau2670 GD Erhardt, S Roy, D Cooper, B Sana, M Chen, J Castiglione | 11 | 2019 |
| Evolution of transportation network companies and taxis through 2013–2018 in Chicago S Roy, A Komanduri, K Proussaloglou Transportation Research Record 2674 (7), 385-397, 2020 | 9 | 2020 |
| Quantifying the impact of transportation network companies (TNCs) on traffic congestion in San Francisco S Roy | 6 | 2019 |
| Modeling demographic relocation in response to climate risk factors and gentrification displacement pressures S Roy, P Vinayak, D Von Stroh Transportation research record 2676 (1), 688-703, 2022 | 3 | 2022 |
| The effect of transportation network companies (TNCs) on Congestion in San Francisco J Castiglione, S Roy, D Cooper, B Sana, M Chen, GD Erhardt Transportation Research Board 98th Annual MeetingTransportation Research Board, 2019 | 3 | 2019 |
| Setting Work Zone Speed Limits A Sharma, T Huang, S Roy, P Savolainen | 3 | 2017 |
| Why is Traffic Congestion Getting Worse? A Quantified Decomposition of Contributors to the Growing Congestion in San Francisco S Roy, D Cooper, R Mucci, B Sana, M Chen, J Castiglione, G Erhardt Transportation Research Board 100th Annual MeetingTransportation Research …, 2021 | | 2021 |
| Determining optimum speed limit reduction in freeway work zones S Roy Iowa State University, 2016 | | 2016 |
