"Enforcement of the speed limit on the section of M4 between Junction 25 and Junction 26 in Newport, which is set via the variable speed limit, is undertaken via existing spot speed
The independent variables were the length and height of speed bumps and the dependent variable was spot speed
The segment speed model builds on the authors' previous research on spot speed
modelling, retaining the operating speed frontier model (OSFM) formulation that allows percentile speed estimation [7, 8].
Several advanced systems also make their debut in the Arteon, including a new generation of adaptive cruise control which uses GPSbased road data to spot speed
limits and adjust the car's speed accordingly.
PC Paul Mckenzie has been working with the schools and partners to improve road safety, and has carried out spot speed
checks in order to educate drivers about the issue.
At the significance level [alpha] = 0.05, the spot speed
measurements for all research sections passed both tests.
One feature I did welcome was its ability to spot speed
cameras well in advance with the bells clanging away like Big Ben when it located one.
In addition, most existing models are based on spot speed
data collected by measuring the individual speeds of a sample of the vehicles passing a given spot .