Preliminary estimates for the cost building the west side highway are so high that the highway would not be considered practicable except for the value that can be ascribed to the land created by land-fill. Or decking. Depending on the alignment chosen. However, the joint development proposals being studied for the west side highway development corridor require expenditures many times greater than for the highway itself. If the highway is to be generator of a new transit system, a freight distribution network for the west side of Manhattan, thousands of units of new housing, new parks, and so on, a way has to be found to fund these projects on something like the same time schedule as the highway itself.