A systems approach to pedestrian safety, Phase II: Examining congestion pricing policies

Summary

We sought to understand the scope of existing research on toll-based CPPs and found that the number of publications grew significantly between 1956 and 2021, with highest productivity in 2015 (n=122). Prevalent topic areas within toll-based CPP literature included the following: factors affecting policy implementation (e.g., design consideration, public perceptions, political acceptability), simulation modeling approaches to understand network dynamics, and impacts of CPP implementation (e.g., traveler choices, air quality/emissions). There were numerous collaborations between authors from different countries, and we observed notable shifts in research productivity by country, as different countries consider these policies. Research gaps identified by this analysis included equity considerations, examination of CPP impacts on specific road user types (e.g., pedestrians, bicyclists), and safety impacts for all road users. Future research should address these gaps with multidisciplinary and international collaborations to support CPP implementation that meets the needs of diverse communities and travel modes.

Publications

• Singichetti B, Conklin JL, Hassmiller Lich K, Sabounchi N, Naumann RB. Congestion pricing policies and safety implications: a scoping review. Journal of Urban Health. 2021;98(6):754-771.
• Naumann RB, Sabounchi NS, Kuhlberg J, Singichetti B, Marshall SW, Hassmiller Lich K. Simulating congestion pricing policy impacts on pedestrian safety using a system dynamics approach. Under review. 2022.
• Singichetti B, Dodd A, Conklin JL, Hassmiller Lich K, Sabounchi NS, Naumann RB. Trends and Insights from Congestion Pricing Policy Research: A Bibliometric Analysis. Under review. 2022.

Presentations

• Naumann RB, Sabounchi N, Kuhlberg J, Hassmiller Lich K. Examining impacts of congestion pricing policies on road safety outcomes using a system dynamics approach. Society for Advancement of Violence and Injury Research Conference. Philadelphia, PA. April 27-29, 2020.
• Naumann RB, Kuhlberg J, Sabounchi N, Hassmiller Lich K. Examining impacts of a congestion pricing policy on road safety outcomes in New York City. International Conference of the System Dynamics Society. Bergen, Norway. July 19-23, 2020. Virtual presentation.
• Singichetti B, Naumann RB. Congestion Pricing Policies: Trends, Insights, and Safety Impacts. Accepted for an oral presentation. Society for Advancement of Violence and Injury Research Conference. March 30-April 1, 2022. Washington, DC.
• Naumann RB, Sabounchi NS, Kuhlberg J, Singichetti B, Marshall SW, Hassmiller Lich K. Using a system dynamics approach to examine congestion pricing policy impacts on pedestrian injury. Accepted for an oral presentation. Society for Advancement of Violence and Injury Research Conference. March 30-April 1, 2022. Washington, DC.