Beginning in January, Madrid will enact new policies to keep cars out of almost 500 acres in the core of the city, part of a long-term plan to entirely pedestrianize the center city.

El Pais in Spain is reporting that, unless they live there, drivers will no longer be allowed to enter the city’s four most central neighborhoods. Instead, all outside traffic will be routed along a select few major avenues. The penalty for driving into one of the restricted zones without permission will be 90 Euros, Architecture Daily reports.

The new rule is expected to reduce traffic in the affected areas by at least one third. Motorcycles and delivery vehicles will be able to enter the zones at certain hours.

Justice Minister Alberto Ruiz-Gallardón told El Pais, “The main objective is to reduce traffic passing through neighborhoods and looking for parking agitation, while increasing parking spaces for residents.”

The measure is in keeping with the city’s 2020 Mobility Plan, which aims to gradually pedestrianize the city center. Madrid has also raised on-street parking rates and increased the use of speed enforcement cameras in an effort to encourage walking, biking, and transit.