This report contains evaluation study of OPS Selamat 7/2015 effectiveness. The evaluation was conducted through several research projects i.e. seatbelt wearing compliance, helmet wearing compliance, vehicle speed and CRS usage. Findings of each measured variable were presented in separate chapters. The comparative trend of road users’ perception and behavioural changes between during OPS Selamat and the non-OPS period was observed. As results, it was found that OPS enforcement activities have a positive effect towards helmet wearing compliance and CRS usage for vehicles entering Klang Valley. However, seatbelt wearing rate decreases and the strategy of lowering the speed limit only increase the speeding noncompliance rate. These findings exhibit that the OPS Selamat 7/2015 has an effect on some elements of road users’ behaviour changes towards traffic legislation compliance. In order to further improve, enforcement should be emphasising to those elements that show an alarming compliance rate. On the other hand, trend analysis for POBC among road users reveals that the level of POBC is significantly higher during OPS as compared to before and after OPS, which demonstrates that the operation is still relevant. However, the rate of POBC is still at the moderate level over eight years (2008 – 2015). Thus, this effort should be continued with innovative approaches to ensure continual improvement of the road users’ perception towards compliance with rules and regulation.