Analysis on Illegal Crossing Behavior of Pedestrians at Signalized Intersections Based on Bayesian Network

Table 7

Variable definition of factors influencing illegal crossings.

Category	Variable	Definition and value
Personal attributes	Age ()	1: <18 (state 4); 2: 18~30 (state 1); 3: 31~45 (state 2); 4: >45 (state 3)
	Education ()	1: Middle school and below (state 4); 2: High school (state 1); 3: Bachelor’s (state 2); 4: Master’s and above (state 3)
	Income ()	1: <3thousand Yuan (state 4); 2: 3~6 thousand Yuan (state 1); 3: 6~10 thousand Yuan (state 2); 4: >10 thousand Yuan (state 3)
	The number of companions ()	1: 0 (state 4); 2: 1 (state 1); 3: 2 (state 2); 4: >2 (state3)
	Hurry ()	1: not hurried (state 3); 2: moderately hurried (state 1); 3: very hurried (state 4)
Traffic conditions	Vehicle volume ()	1: small (<300pcu/hlane) (state 3); 2: medium (250~550pcu/hlane) (state 1); 3: large (>500pcu/hlane) (state 2)
	Waiting time ()	1: short (<30 s) (state 3); 2: medium (20~60 s) (state 1); 3: long (>50 s) (state 2)
	Pedestrian flow ()	1: small (<40ped/circle) (state 3); 2: medium (35~60ped/circle) (state 1); 3: large (>55ped/circle) (state 2)
Road conditions	Crossing distance ()	1: 1~2 lanes (state 3); 2: 3~4 lanes (state 1); 3: 5~6 lanes (state 2)
	Safety island presence ()	1: Yes (state 2); 2: No (state 1)
	Countdown device presence ()	1: Yes (state 2); 2: No (state 1)
	Location of traffic attractions ()	1: On anterolateral side of crosswalk (state 2); 2: On right ahead of crosswalk (state 1)
Crossing	Signal light color ()	1: Red (state 2); 2: Green (state 1)
	Crossing track ()	1: Part/not in the crosswalk (state 2); 2: Completely in the crosswalk (state 1)