Understanding the Factors That Are Associated with Motorcycle Crash Severity in Rural and Urban Areas of Ghana

Table 1

Equations used in the mixed multinomial logit model formulation.

Equation	Description
	Sin = severity function for category i in crash n, βi = estimable severity parameters for category i, Xin = explanatory variables of severity category i in crash n,  = error term—generalized extreme value distributed [56]
	Pn(i) = probability of ith outcome occurring in the nth observation [57]
	= probability of injury severity i conditional on f,  = vector of parameters with known density function [58]