Automatic Traffic Counter System (ATCS) was installed by MPWT in July 2013 and have been operating since 1st August 2013.The ATCS located at six weigh stations as below:
- Bavet, Svay Rieng: NR1, PK 149+100
- Long Veaek, Kampong Chhnang: NR5, PK48+000
- Kleang Moeang, Pursat: NR5, PK191+800
- Koun Damrey, Poipet: NR5, PK389+000
- Pouk, Siemreap: NR6, PK331+840
- Thnal Totueng, Kampong.cham: NR7, PK137+00
The system is designed to collect traffic volume of passing vehicle along roads and to screen suspicious vehicles of overloading.