4 Acknowledgements

We are grateful to the Utah Department of Transportation and UTA for supporting this research by providing data and configuring the experiment. Graphics and tables were produced with several open-source R packages (Arel-Bundock, 2021; Kahle & Wickham, 2013; Ram & Wickham, 2018).

Arel-Bundock, V. (2021). Modelsummary: Summary tables and plots for statistical models and data: Beautiful, customizable, and publication-ready. https://vincentarelbundock.github.io/modelsummary/

Kahle, D., & Wickham, H. (2013). Ggmap: Spatial visualization with ggplot2. The R Journal, 5(1), 144–161. https://journal.r-project.org/archive/2013-1/kahle-wickham.pdf

Koenker, R. (2020). Quantreg: Quantile regression. https://CRAN.R-project.org/package=quantreg

Koenker, R., & Hallock, K. F. (2001). Quantile regression. Journal of Economic Perspectives, 15(4), 143–156.

Liu, X. C., Zlatkovic, M., Porter, R. J., Fayyaz, K., & Yu, S. (2018). Improving efficiency and reliability of bus rapid transit (MPC 18-349). Mountain-Plains Consortium; https://www.ugpti.org/resources/reports/downloads/mpc18-349.pdf.

Ni, Y.-C., Lo, H.-H., Hsu, Y.-T., & Huang, H.-J. (2020). Exploring the effects of passive transit signal priority design on bus rapid transit operation: A microsimulation-based optimization approach. Transportation Letters, August. https://doi.org/10.1080/19427867.2020.1805681

R Core Team. (2021). R: A language and environment for statistical computing. R Foundation for Statistical Computing. https://www.R-project.org/

Ram, K., & Wickham, H. (2018). Wesanderson: A wes anderson palette generator. https://CRAN.R-project.org/package=wesanderson

Schultz, G. G., Sheffield, M. H., Bassett, D., & Eggett, D. L. (2020). Impacts of changing the transit signal priority requesting threshold on bus performance and general traffic: A sensitivity analysis (UT-20.06). Utah Department of Transportation Research & Innovation Division.

Sheffield, M. H., Schultz, G. G., Bassett, D., & Eggett, D. L. (2021). Sensitivity analysis of the transit signal priority requesting threshold and the impact on bus performance and general traffic. Transportation Research Record, January. https://doi.org/10.1177/0361198120985853

References

Arel-Bundock, V. (2021). Modelsummary: Summary tables and plots for statistical models and data: Beautiful, customizable, and publication-ready. https://vincentarelbundock.github.io/modelsummary/

Kahle, D., & Wickham, H. (2013). Ggmap: Spatial visualization with ggplot2. The R Journal, 5(1), 144–161. https://journal.r-project.org/archive/2013-1/kahle-wickham.pdf

Ram, K., & Wickham, H. (2018). Wesanderson: A wes anderson palette generator. https://CRAN.R-project.org/package=wesanderson