Safety data
Safety data includes, but are not limited to, crash, roadway characteristics, and traffic data on all public roads. For railway-highway crossings, safety data also includes the characteristics of highway and train traffic, licensing, and vehicle data.
Source
23 CFR § 924.3
Scoping language
Unless otherwise specified in this part, the definitions in 23 U.S.C. 101 are applicable to this part. In addition, the following definitions apply: