Okay, so you are out driving the trial route and have found your first trap. What do you do now? Following is an example of a trap, and what to do.
CRI #7. Left into MOWBRAY PL
Order of Priorities (as set out in the ASR's)
Section Overrider - No section overriders exist
The problem with this instruction is that we cannot turn the car into a sign, so what do
we do? We first need to look to the "Order of Priorities" in the ASR's to tell
us what to do.
First Priority are the ASR's. Well, they don't tell us what to do at MOWBRAY PL, so we
can ignore them.
Second Priority, the CRI's. Well, we can't execute the instruction in the CRI's because we
can't turn into the sign.
Third Priority is the section overrider. There is no section overrider existing, so scrub
that priority.
Forth Priority, Line of Least Deviation. Yes we can proceed straight ahead, so that is
what we will do.
We are now travelling along past MOWBRAY PL, still trying to complete CRI #7. It is obviously an instruction we will not be able to complete so we should be looking for a check to delete the instruction. Sure enough we come across a check with the code "DUR".
Since it is a check we write it down on out sheet to show we have taken the correct route and then execute the code on it. Looking in the ASR's we see the following relating to check codes:
D - Delete the instruction you are trying to complete
U - Execute a u-turn
L - Turn Left at the next intersection
R - Turn Right at the next intersection
So, we travel past the check (as we always should), delete the current instruction (CRI #7, the one we are having problems with), execute a u-turn and turn right at the next intersection. Doing this will put you back onto the same road as those who missed the trap and check, and you will now be doing the next instruction (CRI #8).
This is a simple example of what you should do when you find a check, and as you can see
it is basically a matter of using common sense and systematically working your way through
the Order of Priorities. Take a look at some more examples of
traps (taken from the MotorSport NZ Trialing Guide circa 1980) for some more practise.
Remember, the best way to learn how to do trials is to go out and attempt to do one yourself. At the finish the organisers will have a sheet with all the answers and the trialing gurus will generally be only too happy to answer your questions. The best way to learn is always be your mistakes.
Introduction | En Route | Traps | Example One | Example Two