to the northeast. Moreover, streetcars on the former three streets did not go counterclockwise around the rotary, but rather, both tracks of all three streetcar routes went around one side of the monument, creating frequent conflicts between streetcars and automobiles using the rotary in opposite directions. The police officers patrolling the circle had to manage the 58,000 cars that entered Columbus Circle every 12 hours. As part of a plan to reorganize traffic in the "Columbus-Central Park Zone", Eno's circular-traffic plan was abolished in November 1929, and traffic was allowed to go around the circle in both directions. Central Park West, a one-way street that formerly carried southbound traffic into the circle, was now one-way northbound. The bidirectional entrance roads into Central Park, which fed into northbound and eastbound West Drive, were both changed to one-way streets because West Drive had been changed from bidirectional to one-way southbound and eastbound. Traffic going straight through Columbus Circle was forced to go around the left side of the monument, while any traffic making turns from the circle had to go counterclockwise around the rotary using the right side. Mid-20th century configurations The bidirectional traffic pattern through Columbus Circle failed to eliminate congestion. In 1941, engineers with the New York City Parks Department and the Manhattan Borough President's office formed a tentative agreement to redesign Columbus Circle yet again. "Local" and "express" lanes would segregate north–south traffic passing within the circle. Local north–south traffic and all east–west traffic would go around the circle's perimeter in a counterclockwise direction, along a roadway. Through north–south traffic on Broadway, Eighth Avenue, and Central Park West would use two divided roadways with landscaped medians, running in chords on either side of the Columbus monument. Traffic from southbound Broadway and northbound Eighth Avenue would use the western chord, and northbound Broadway and southbound Central Park West would use the eastern chord. The center of the circle would be refurbished with a tree-lined plaza, and pedestrian traffic from the north and south would be able to pass through the center of the circle. The exit into Columbus Circle from West Drive would be eliminated, and the entrance to West Drive would be relocated. In a related development, the 59th Street trolley route's tracks would be removed. This was crucial to the reorganization of the circle, as the trolley had already been discontinued. The proposed reorganization of Columbus Circle was