Statistical Safety Performance Models considering Pavement and Roadway Characteristics

Table 1

Friction data in ODOT Skid Studies Program (2012–2015).

Year	Highway classification	No. of control sections	Skid testing lane (miles)
2012	I-35, US, SH	474	5,078
2013	US-69	14	213
2014	IS, US, SH	664	7,148
2015	IS, US, SH	553	5,903
Total	IS, US, SH	1,705	18,341

Note. IS: interstate highways, US: United States highways, and SH: state highways.