No. Road parameters Accident Modification Factors (AMF) Where 1 Lane Width $\text{AMF}1\text{r}=\left(\text{AMFra}-1\right)\ast \text{Pra}+1$ AMFra = AMF of related accidents, Pra = proportion of related accidents, w & t indicate width & types of shoulder respectively 2 Shoulder Width $\text{AMF}2\text{r}=\left(\text{AMFwra}\ast \text{AMFtra}-1\right)\ast \text{Pra}+1$ 3 Horizontal Curves (HC) $\text{AMF}3=\frac{1.55\ast Lc+\frac{80.2}{R}-0.012\ast {S}^{*}}{1.55\ast Lc}$ Lc = HC length (mi), S = spiral curve and R = HC radius (ft) 4 Super elevation $\text{AMF4}=\text{1}.00$ for $\text{SV}<0.0\text{1}$ ; $\text{AMF4}=1.00+\text{6}\ast \left(\text{SV}-0.0\text{1}\right)$ for $0.0\text{1}\le \text{SV}<0.0\text{2}$ ; $\text{AMF4}=1.06+\text{3}\ast \left(\text{SV}-0.0\text{2}\right)$ for $\text{SV}\ge 0.0\text{2}$ SV = super elevation variation (m/m) 5 Grades G ≤ 3%, AMF5 = 1.00; 3% < G ≤ 6%, AMF5 = 1.10; and G > 6%, AMF5 = 1.16 G = grade of the road 6 Driveway Density $\text{AMF}6=\frac{0.322+\text{DD}\ast \left(0.05-0.005\ast \mathrm{ln}\left(\text{AADT}\right)\right)}{0.322+5\ast \left(0.05-0.005\ast \mathrm{ln}\left(\text{AADT}\right)\right)}$ DD = driveway density 7 Roadside Design $\text{AMF7}=\frac{\mathrm{exp}\left(-0.6869+0.0668\ast \text{RHR}\right)}{\mathrm{exp}\left(-\text{0}\text{.4865}\right)}$ RHR = road hazard rating 8 Passing Lanes AMF8 for short four-lane sections = 0.65 AMF8 applied only for short four-lane section