Work on the widening of the A3 Naples-Pompeii-Salerno freeway, financed by ANAS and contracted out by the Società Autostrade Meridionali, involved the addition of the third lane, the upgrading of the Scafati and Castellammare interchanges, and the creation of new traffic circles to improve traffic flow. Archaeological and environmental interventions, such as the protection of century-old pine trees and the recovery of artifacts, characterized the project, which also included urgent adjustments for Pope John Paul II's visit to Pompeii.