Traffic engineering shows that one 60-seat bus can replace roughly 40–50 cars when average car occupancy is 1.2–1.5 people. Research found that when public transit service was unavailable, highway congestion delays increased by 47%. Higher passenger density means fewer vehicles, lower fuel use, and reduced CO₂ emissions, demonstrating how mathematics and transportation science improve urban mobility. Source: 1. Anderson, Michael L. “Subways, Strikes, and Slowdowns: The Impacts of Public Transit on Traffic.” National Bureau of Economic Research, Working Paper No. 18757, 2013. 2. Qiao, Wei, et al. “Integrated Evaluation Method of Bus Lane Traffic Benefit.” Mathematics, vol. 12, no. 17, 2024. Want more interesting content like this ? Follow gravitonomy :) #publictransport #science #carbonfootprint #pollution #climatechange