Enhance existing air brake and handbrake procedures to include:
• a minima number of handbrakes to be applied proportional to the number of unattended wagons
• a brake effectiveness test to be carried out before locomotives are separated from an unattended rake of wagons
• operating personnel required to communicate with each other at defined stages before wagons are left unattended on a main line
• consolidate instructions pertaining to the operation of hand brakes and air brakes applicable at train separation