MWCrashFix
A widely used fix for this crash is implemented in @GrimMaple's mwfixes project, however, MWCrashFix (this mod) takes on a different approach for fixing this error, and that is by replacing the erroneous event with a different one, which should in theory not affect the spawn amount of pursuit events.
This mod CAN be used along with the mwfixes project, however, the 'Roadblock spawn problem fix' in mwfixes will become obsolete.
Usage
Copy MWCrashFix.asi to scripts folder, which is located inside the main Need For Speed Most Wanted Black Edition game folder.
Source:
https://github.com/x0reaxeax/MWCrashFix