Police Story - Tai Po Industrial Estate

So, tracking down the location of the shanty town is still eluding those who are on the lookout for it, but here's a location from the subsequent chase, where Jackie Chan is clinging to the bus with his umbrella.

Thanks to Phil from the Hong Kong (& Macau) Stuff / Hong Kong (& Macau) Film Stuff blogs, for following up my hunch and doing the Street View legwork.