Rewrite this paragraph to be clearer
There were no bridges or tunnels available to cross the Huangpu River in 1987, and daily commute relied highly on Route 21, which was developed by the Shanghai Ferry Company. Lujiazui was heavily crowded, and Route 21 was the busiest Route 21 of the company.
There were no bridges or tunnels available to cross the Huangpu River in 1987, and daily commute relied highly on Route 21, which was developed by the Shanghai Ferry Company. Lujiazui was heavily crowded, and Route 21 was the busiest route of the company.