|
| Variable | Definition |
|
| Traffic speed | ≤30 km/hr versus >30 km/hr estimated average vehicle speed. |
| Traffic volume | Number of vehicles per hour; 3 categories: low (≤250 vehicles/hr); medium (250–749 vehicles/hr); high (≥750 vehicles/hr). |
| Bicyclist volume | No bicyclists observed at location versus at least one bicyclist. |
| Path type | Sidewalk, multiuse path (shared by bicyclists and pedestrians) with markings (e.g., center line, stencils), or without markings. |
| Path location | For each side 3 categories: within 1 metre of roadway; between 1 and 3 metres; (3) >3 metres. |
| Path material | For each side, continuous or slab concrete and bitumen (asphalt) versus gravel and grass. |
| Path/road slope | Flat versus moderate or steep slope (for each side of path). |
| Path/road condition | Good versus moderate, poor, or under repair (for each side of path). |
| Path obstructions | For each side, presence of permanent obstructions (poles, signs, trees, benches, tables, fences) versus none. |
| Bike lane | Marked designated bicycle lane on roadway versus no marked lane. |
| Roadway lanes | 1–3 lanes versus 4 or more lanes. |
| Curb | For each side 3 categories: mountable curb; nonmountable; no curb. Reference category was mountable curb. |
| Traffic control devices | Presence of traffic control devices (roundabout, speed bump, chicanes/chokers, lane narrowing, and signals) versus no traffic controls. |
| Crossing | Presence of crossings (zebra, signals, bridge) versus no crossings. |
| Crossing aids | Presence of crossing aids (median, kerb extension) versus no crossing aids. |
| Other routes | Presence of alternate routes (lanes, path through park, no through road) versus no alternate route. |
| Intersections | Path-path and path-road intersection versus no intersection. |
| Streetlights | For each side, presence of street lighting versus no street lights. |
| Lighting on path | For each side, whether lighting covered the path or not. |
| Destinations | The location provided access to services or other destinations (e.g., park, convenience store, businesses) versus no destinations. |
| Surveillance | Location could be observed from ≥75% versus less than 75%. |
| Maintenance | Location gardens and verges were >75% well maintained versus less than 75%. |
| Verge trees | Presence of tress along the verge versus no trees. |
| Tree height | Tall or medium sized trees versus small trees. |
| Cleanliness | Location is clean (free of debris, garbage, graffiti, etc.) versus some uncleanliness. |
| Natural features | Presence of parks, green space, river, lakes, and so forth. |
| Path width | Path is 150 centimetres or less versus wider than 150 centimetres. |
| Age | ≤14 years old versus ≥15 years old. |
| Bicyclist speed (“speed”) | <15 km/hr versus ≥15 km/hr. |
| Bicycling faster than usual (“riding fast”) | Bicyclist reported “cycling faster than usual” at the time of the incident. |
| Peak time | Peak time (Monday–Friday 06:31–08:30 and 16:01–18:00) versus off-peak time and weekends (Saturday and Sunday) |
|
