I was pleased the response mentioned the Jones Counter but surprised it specified the Jones-Oerth Counter which hasn't bee available for decades. See attachment for full answer.
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And it apparently shows a picture of a measuring wheel, which isn't part of the process.
I noticed that. Wonder how that ever got in the photo.
Since I asked Bing AI how to measure a road running course, I thought I'd give Google's Bard a shot at it. What I got back is pretty bizarre. Read the section on measuring by way of electronic timing.
Road running races are measured using a variety of methods, including:
- Chaining: This method involves measuring the distance between two points along the course using a chain or tape measure.
- Jones Counter: This is a device that measures the revolutions of a wheel as it travels along the course. The distance is then calculated based on the number of revolutions and the circumference of the wheel.
- Electronic timing: This method uses electronic sensors to measure the time it takes runners to cross the finish line. The distance can then be calculated based on the time and the average speed of the runners.
The most accurate method of measuring a road running course is to use a Jones Counter. However, this method is also the most expensive. Electronic timing is a more affordable option, but it can be less accurate than chaining or using a Jones Counter.
The International Association of Athletics Federations (IAAF) requires that all road running courses be measured using a Jones Counter or electronic timing. The IAAF also requires that the courses be measured along the shortest possible route that a runner could follow.