Given the utility expression:

$U_K=A_K-0\mathrm{.}05T_a-0\mathrm{.}04T_w-0\mathrm{.}02T_r-0\mathrm{.}01C$

where

$T_a=$ access time

$T_w=$ waiting time

$T_1=$ riding time

$C=$ out$-of-$pocket cost

$($a$)$ Apply the logit model to calculate the shares of the automobile mode $(A_K=-0\mathrm{.}005)$ and a

mass transit mode $(A_k=-0\mathrm{.}05)$ if

$($b$)$ Usc the incremental logil model to estimate the patronage shift that would result from does

bting the bus out$-$of$-$pocket cost: