The large number of safety studies indicates that this issue...

The large number of safety studies indicates that this issue has received a great amount of attention. Unfortunately, many of these studies involve more advocacy than science. It's not that these studies aren't valuable, but they have problems with methodology, statistical analysis and even simple understanding of important terms, such as 'speeding.' In accident data, speeding is defined as both 'traveling faster than the posted limit' and 'traveling too fast for conditions.' Studies often do not differentiate between these definitions.