This a routine that is used within the MSPSL routine. LADA stands for:
For example, many drivers are guilty of not looking enough at junctions. In fact, this is the number 1 reason for failing the driving test too.
Roundabout example applying LADA:
If you look just once on the approach, then your time to assess and decide is low. When you act on this single observation and decide to go or hold back it could be dangerous. Most of the time you will look on the first instance and after assessing, your brain should tell you to return to the ‘look’ part of the routine again for further information. These first two steps may be repeated several/many times before you move onto the decide part of the routine.
To make the best and correct decision both the look and the assess should have been effective. Deciding is usually the brain establishing the right/next move to stay alive basically and negotiate the problem ahead smoothly. Act is usually when your brain sends signals to your hands/feet and you decide to adjust your position, speed and or gear.