Joshua Muravchik criticizes the road map on grounds similar to the ones I used in my earlier post - only much more eloquently than I did, which is to be expected (after all, the man does this for a living):

...Postmortems of Oslo, notably by the chief U.S. negotiator, Dennis Ross, have focused on America's failure to insist on full compliance with the terms of the agreement, especially on the part of the Palestinians, a failure that was driven by the pressure to meet predetermined timetables. Precisely to avoid repetition of this mistake, the Bush administration has characterized the road map as "performance driven." But that is scarcely compatible with a breakneck dash around the map's multiple clover leaves.
...The still deeper flaw in the road map's premises is the presumption that with the terms of settlement fairly apparent, all that is needed is a guide for getting there. In the final analysis, however, the missing ingredient for peace between Israel and the Palestinians is not a blueprint of the destination, nor is it the route. The missing ingredient is a decision by the Palestinians and the other Arabs to accept the existence of a Jewish state in their midst and to live in permanent peace with it. Despite all the Palestinians have suffered these two and a half years, public opinion polls show that a clear majority of them support continuing the intifada and suicide bombing and that about half say that the goal should be the "total liberation of Palestine," in other words, the elimination of Israel. The other half of the Palestinians say they want a two-state solution. When that half grows and becomes dominant, then and only then, will real peace be possible.
...The simple reality is that the moment the Palestinians make a wholehearted turn toward peace, no road map will be necessary.