It's an open secret that the readouts from the monitoring during labor don't really mean anything by themselves. They are mostly used to make sure something is going on and that the baby is doing okay. Theoretically you can calibrate the monitoring to have continuously comparable results but in practice there's no point. It's less about the values or the patterns and more about a general trend. But in terms of measuring the actual process, dilation trumps every other metric.

Also contractions stopping when you go to the hospital is a well-known thing literally caused by the change of scenery. This is why some midwives recommend taking the stairs: not because the elevator might get stuck but because the pelvic motion of going up stairs while very pregnant can (re-)induce the contractions. Also while being stuck in one place because of continuous monitoring can mess with labor (which is why midwives recommend pacing, squatting, etc rather than lying down), the periodic checks can also be counterproductive because they can "pause" the process.

It's good that we have modern pre-, post- and natal care available nowadays but a lot of the medicalization of the birthing process actually makes it more difficult to give birth and doctors (and lawyers tbh) tend to err on quantifiable metrics even when everything is fine and the measuring is counterproductive.

(this was written as a reply to hospitalhusband's reply which has since been deleted)