Congestion pricing (or road pricing) is a transportation demand management strategy that charges drivers to use certain roads or areas during busy times. By making driving more expensive when and where roads are most congested, pricing encourages some trips to shift to other times, routes, or modes (like transit). Examples include London's congestion charge and tolled express lanes in various cities. Congestion pricing is debated in Canadian cities facing growing traffic. Proponents argue it efficiently manages scarce road space while generating revenue for transit. Critics raise concerns about equity (lower-income drivers may be disproportionately affected), surveillance, and political feasibility. No major Canadian city has implemented area-wide congestion pricing.