The Run Canada Committee
Road Race Course Measurement Procedures
STATEMENT OF REQUIREMENTS
There are seven basic steps involved in measuring a course for
certification. These are:
- Lay out an accurate calibration course. The calibration
course must be a straight stretch of paved road, level and
relatively free of traffic, and at least 300 meters in length. You
may wish to check with the nearest regional certifier to determine
it there is a suitable calibration course near you.
- Calibrate the bicycle. Ride the bicycle over the
calibration course, taking care to ride in as straight a line as
possible. At least four calibration rides must be made immediately
prior to measuring the race course. The "working constant" is the
number of counts/km (or per mile) times the short course
prevention factor of 1.001.
- Measure the course. Ride the bicycle over the course,
following the shortest possible route as it will be available to
the runners on race day. At least two measurements over the course
are required for certification. Use the first measurement to
establish tentative start and finish marks. Use the second (and
any subsequent) measurement to check the distance between those
same marks. In particular, during the second measurement,
simply record counts at the points already marked during the first
measurement. Do Not make new marks on the road during the
second measurement. If you measure on different days, calibrate
both before and after measuring on each day.
- Recalibrate the bicycle. Ride the bicycle over the
calibration course at least four times immediately after the
course measurement(s). After recalibrating, determine your
constant for the day, which is the average of the
pre-measurement (working) constant, or post-measurement (finish)
constant. (Note: Measurements calculated using the larger
of the working and finish constants will also be accepted.*)
- Determine the proper measured course length.
Recalculate each measured distance using the appropriate
constant for the day. If you only measure the course twice,
the proper measured length is the smaller value. E.g., you measure
between the same start and finish points and obtain
distances of 10,000 and 9,993.7 meters. The proper measured length
is 9,993.7 meters. If you measure three times, the proper measured
length is the smallest value. If you only measure twice,
the two measurements may not differ by more than 0.08% or you must
take a third measurement.
- Make the final adjustments to the course. If the
proper measured length differs from the desired (or
advertised) course length, you will need to adjust either
your start, finish, or a turn-around point. These adjustments may
be made with a steel tape. Once all the measurements have been
completed, the proper set of marks should be made permanent and
all others should be erased.
- Submit applications and supporting documentation to your
regional
certifier (see Appendix F
for the application forms). Carefully record all data taken and
prepare a map showing the course layout, details of the
start and finish zones and turn-around points, and any areas where
the certification will require erection of barriers that restrict
runners to a path longer than the shortest path available using
the whole roadway (but note: for simplicity and to minimize the
chance of having your course found short, it always best to lay
out courses without any "restrictions" of this sort). In
drawing the map, it is also highly desirable to include a line
which displays the actual path measured through the course.
* The USATF prefers the use of the largest constant as it
is least likely to result in a short course while the IAAF uses
the average of the pre- and post- constants.
Return to: Measurement Home Page
Created and maintained by Laurent Lacroix -
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Updated: 02-03-2001