With so many new amenities coming to the Great Park, the City is working to improve access and traffic circulation into and around the park.

A portion of Marine Way runs along the southern perimeter of the Great Park, north of the Metrolink railway. However, there is currently no direct rail crossing or direct road access into the Great Park from Marine Way and Barranca.

Construction is now underway to extend Marine Way and create a new rail undercrossing to provide a direct connection between the Great Park and the Spectrum area.