The Washington Street Elevated was extended to on November 22, 1909, increasing its prominence as a transfer location. Requests from local residents and politicians to extend the South Huntington Avenue line from Jamaica Plain Carhouse to Forest Hills began before the extension was completed and continued throughout the 1910s. Free transfers at Jamaica Plain Carhouse were added on March 1, 1913. That April, the BERy indicated willingness to add express service to the South Huntington Avenue line, but could not extend the line until more cars were available. On June 12, 1915, the Hyde Park–Forest Hills line was extended to Jamaica Plain Carhouse, with the Forest Hills–North Station (via Columbus Avenue) route cut back to Jamaica Plain Carhouse; this change was to provide more frequent service between Forest Hills and the carhouse. The change was unpopular with residents; on October 2, 1915, the Hyde Park line was cut back to Forest Hills and the Charles River line extended in its stead, establishing a direct connection between West Roxbury and the South Huntington Avenue line. On March 1, 1924, the BERy opened a streetcar transfer station inside Arborway Yard to relieve crowding at Forest Hills station. The South Huntington Avenue line was soon extended to Arborway, improving connections with the other lines.