jacek, i stay near there. there are frequent police blocks (blue uniform) and recently, jpj also joined in the fun. they usually target 3 places.
1. after casa indah condo on the way to petronas/a&w/maybank
2. windy road at sri selangor golf course (coming from casa tropicana but sometimes both sides)
3. after shell/pelangi damansara condo on the way to dataran sunway
the irritating part is, they sometimes conduct blocks on weekends from 9:30pm to about 11pm at night. imagine the jam if you are coming back from the curve, tesco, cineleisure, 1 utama.
if they were sincere in catching the rempits or drunk drivers, they should wait till after midnight and not torture law abiding citizens like us.