$R,N,A,M$	Set of PT routes, stops, arcs, and PT attributes
$A_i^{+}$	Set of PT lines leaving node i
P	Set of passenger’s preferences for all of the PT attributes
$L^{\mathit{od}}$	Set of acceptable candidate choices between nodes o and d
$V_l^{\mathit{od}}\left(\mathbf{P}\right)$	Set of ordered PT attributes between nodes o and d using PT line l
$v_{l,m}^{\mathit{od}}$	The value of the mth PT attribute between nodes o and d using PT line l
${\beta }_m^{\mathit{JND}}$	Just noticeable difference (JND) threshold value associated with PT attribute m (Weber’s JND)
${\eta }_m^{\text{accept}}$	Personal maximum/minimum acceptable value of the mth PT attribute