A proposal to realign Route 1 through Strathgartney Provincial Park west of Charlottetown was met with significant public opposition in 2011. Construction started on a revised route avoiding the park, dubbed "Plan B" by opponents, in October 2012. Environmentalists protesting at the work site caused construction to be halted for several days. Darcie Lanthier, then interim leader of the P.E.I. Green Party, was arrested and several protesters charged with trespassing before construction resumed. The realignment opened to traffic on September 23, 2013. The protest group, which became known as "Stop Plan B", monitored construction throughout the project and returned in October 2015 to plant trees along the new alignment.