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

$\text{AMF}6=\frac{0.322+\text{DD}\ast \left(0.05-0.005\ast \ln \left(\text{AADT}\right)\right)}{0.322+5\ast \left(0.05-0.005\ast \ln \left(\text{AADT}\right)\right)}$

DD = driveway density

7

Roadside Design

$\text{AMF7}=\frac{\exp \left(-0.6869+0.0668\ast \text{RHR}\right)}{\exp \left(-\text{0}\text{.4865}\right)}$

RHR = road hazard rating

8

Passing Lanes

AMF8 for short four-lane sections = 0.65

AMF8 applied only for short four-lane section