Abbreviations for Rocky Mountain system for stage notes

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30th Anniversary Rocky Mountain Rally, organized by the Calgary Sports Car Club has set a standard for its official stages. The official notes are produced by the latest version of inertia based Jemba Safety Notes System.

The system is a straight figure based system, very similar to the one used in the SCCA ProRally Championship in USA, but based on a metric measurement of distances (km and meter in stead of miles and yards). Therefore straights will be different.
The rest of definitions comply with SCCA with increasing number for increasing speed (gear) and is similar to most figure based systems even if some drivers use the opposite. Grades of corners definition are the same as for SCCA to encourage visitors from the USA. Most corners may have a plus or a minus if needed, only to be read by skilled users.

Click picture to enlarge a view of the definition of corners

The following abbreviations are used:

Direction of corner

Direction is given as R or L BEFORE grade of corner.

Grade of corner (describes mainly the angle of the steering wheel = radius of the corner) and direction

A "+" after the corner means a slightly FASTER corner. A "-" after the corner means a slightly SLOWER corner. Only skilled crews should read + or -. All others are adviced to ignore those terms.
Note figure based
Note figure based
Fastest cornerL6+R6+
Slowest cornerL1R1

Duration of corner

Information for duration is given after corner.
Length in meters is less than a normal corner of indicated grade but at least same angle. Note! this may be slower than the normal corner of same grade!short
Normal duration
More duration than normallg
Very long durationVlg
Still longer duration-Extra longXlg
Extreme duration or where it is hard to define the position e.g. Cr/100 L6/150/xxx

Linked corners

Information for linking of corners is given after corner. Note that linked corners will give you a longer combined corner than the normal basic corner.
"Tightens" or "Closes". A complete corner of the given grade is linked into a slower corner with the same direction. The slower grade could be indicated if there is a big difference in the grades as L6 >4, which means the L6 continues and is followed by L4. >
"Opens". As above but indicating a faster grade at the exit. <
"Opens and tightens". A combination where the first section is followed by a faster section and finally a slower section. Grade (but not direction) is usually given also for the last section. Note that the last section may be faster than the first section. This makes it possible to see combinations like: L3<>4 <>


Straights are measured to/from entrance/exit of corner, middle of crest, bridge, etc
A second corner/object has to be taken into consideration for line on the road for the first corner/object, eg. L4 into R3, means that there is no time to change your line after the L4, and that the driver may need to take a slightly different line to allow for the R3into
A brief distance between corners, less than 25 meters, just allowing change of line
Distance in meters between corners/objects. Shorter distances than 30 meters are given only if it is very important, eg. Cr 20 L4.30, 50, 70, 100, 120, 150, 180, 200, 250...
You have an overview over a straight with undefined slight cornerskinks

Cautions - warnings

"Caution". Used as a Wake up - may be marked in road book and alongside the road with signs !
"Double Caution". Beware, there is likely to be something difficult on or alongside the route - may be marked in road book and alongside the road with signs !!
"Triple Caution". Danger, serious hazard - may be marked in road book and alongside the road with signs!!!


Small crest/brow. There may be two different reasons for giving a small crest in the notes:
1) You can not see the road at the end of a straight due to a crest that has marginal influence on the handling of the car.
2) There is a crest in a corner (you will usually see the road after it) and it will have some influence on the handling of the car.
Crest/brow. You lose a considerable amount of grip when passing a crest.Cr
Crest/brow. You usually donít see the road after itCr
Action on top of crest (Example: turn L3 onCr)onCr
Long (small) crest is where the crest continues over a longer distance, making it difficult to define the peak. NOTE! Distance measurement to a long crest ends where the first impression of a peak seems to be and starts when you see the road past the crest.lgCr, lgsmCr
Crest over 70 indicates a long crest over a straight of 70 mCr/70
Small jump, car loose a lot of traction because of the crestsmJmp
Jump, car may leave the groundJmp
Big jump, car will leave the groundBigJmp
Short sharp crest that will unsettle the car abruptlykick
Bump, the road surface may be uneven as a result of ruts across the road, rocks poking up or other situations which will disturb the handling of the car when hitbmp
Big bump, severe bump (potentially car damaging)BigBmp
Dip, road in a shallow V shapedip


"Over". Usually associated with Crest, which begins before end of a corner so the crest may cause bad grip in the corner. May also be used with a bridge, corner or other objects (e.g. /][).Long crests or corners may be defined over distances (e.g. Cr/100 L6/350 bmp/70) where they are hard to define in terms of where they start and end or if the extension is extreme./


Miscellaneous information is given in the notes. The following terms will be given as abbreviations.
Denote something that may be true. Mainly water or slippy have got this information as they may change over time. It may be read "maybe".?
Bridge or cattle grid][
Bump, big bump. The road surface may be uneven as a result of ruts across the road, remanants of a waterbar, rocks poking up or other situations which will disturb the handling of the car when hit.bmp, bigBmp
Dip. Road in a shallow V shape. To reduce number of terms to read this implies a caution without being explicitly printed dip
Cattle guard guard
Exposure/drop right or left. To reduce number of terms to read this implies a caution without being explicitly printed DropR, DropL
Junction which you passpast Jct
No cut. Stone or other obstacle inside cornern.c.
Road narrows nar
Off cambero.c.
Rough ruf
Keep lefthand side of road over crest or through cornerstay L
Keep middle of road over crest or through cornerstay middle
Keep righthand side of road over crest or through cornerstay R
Through thru
Junction where you turn. Distance from start to junction is given under note. When the turn is a considerable change in direction and no space is left to overshoot: At T (-junction) is given. Example: turn R4@Tturn (@T)

Most additional information is given in full text

Tricky combinations may be underlined to indicate that parts belong to the same combination.

A sequence of notes could look like:

miles from startNotesmiles to finish
1,293R6 120 ! Cr L6>4


1,767R5/Cr L4- into turn L4lg


2,11350 ][ R3 n.c.


The above would be read as follows:
Right six ____ one hundred and twenty ____ caution crest left six tightens four
Right five over crest left four minus into turn left four long
Fifty ____ bridge ____ right three no cut

Last updated: August 25th 2005