Research Article
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) |
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