Table 4

Factors related to road system organisation and its association with mortality due to motor vehicle-pedestrian collisions in Guadalajara Metropolitan Area, 2012

Road systemCase locationControl location (nearby)Bivariate analysisMultivariate analysis
n%n%OR(95% CI)aOR95% CI
Intersection features
 Intersection
  T2737.502838.901.010.48 to 2.12
  Cross4055.604258.301
 Ways*
  Four5110.803447.202.410.82 to 7.50
  Three1318.102534.700.840.24 to 3.00
  Two811.101318.101
 Pot-holes
  In both streets811.101723.600.470.15 to 1.32
  In one street2636.101723.601.520.67 to 3.52
  None3852.803852.801
Intersection infrastructure
 Bus stops
  On both streets1723.6256.9410.773.58 to 33.306.802.00 to 23.07
  On one street3751.391013.8911.724.88 to 28.169.183.54 to 23.84
  None1825.005779.171.00
 Pedestrian bridge
  Yes1825.0045.565.671.81 to 17.733.160.95 to 10.50
  No5475.006894.401
 Speed bump
  On both streets00.0000.00
  On one street45.61115.300.320.07 to 1.18
  None6894.406184.701
Road signs
 Stop signs (horizontal)
  On both streets56.9034.201.720.31 to 11.75
  On one street2027.802027.801.040.46 to 2.33
  None4765.304968.101
 Stops signs (vertical)
  On both streets00.0000.00
  On one street45.601115.300.320.07 to 1.18
  None6894.406184.701
 Lane markings
  Marked4359.902737.52.451.2 to 5.10
  Not marked2940.304562.501
 Directional arrows
  Marked2027.801723.301.790.84 to 3.92
  Not marked5272.305576.401
 Speed limit
  Marked811.2057.001.660.45 to 6.84
  Not marked6488.906793.101
Pedestrian subsystem
 Crosswalks
  On both streets1825.001622.201.120.46 to 2.72
  On one street1419.401622.200.870.34 to 2.20
  None4055.604055.601
 Cars parked on the sidewalks
  On both streets1216.7068.302.640.82 to 9.44
  On one street2433.301825.001.770.78 to 4.03
  None3650.004866.701
 Street vending
  On both streets811.1045.602.520.62 to 12.31
  On one street2433.301723.601.790.80 to 4.08
  None4055.605170.801
 Continuous sidewalk
  On both streets4359.704258.301.560.67 to 3.70
  On one street1419.4079.703.000.88 to 11.07
  Non-continuous1520.802331.901
 Cracked, broken or irregular sidewalks
  On both streets3345.803143.101.620.64 to 4.22
  On one street2636.102129.201.880.70 to 5.21
  None1318.102027.801
Road infrastructure
 Traffic light
  Yes2534.721115.282.951.32 to 6.602.020.82 to 4.9
  No4765.286184.721.001.00
 Pedestrian island
  Yes3650.001013.896.202.75 to 13.974.451.85 to 10.74
  No3650.006286.111.001.00
 Sidewalk
  ≥3 m3548.611520.834.021.74 to 9.303.241.35 to 7.76
  >1.7 m to <3 m1926.392636.111.260.55 to 2.881.110.47 to 2.64
  ≤1.7 m1825.003143.061.001.00
Road features
 Road hierarchy†
  Arterial2636.1079.702.100.68 to 7.06
  Collector79.7045.6010.21 to 5.40
  Minor collector56.901013.900.290.06 to 1.13
  Subcollector56.90912.500.320.07 to 1,29
  Local11.42636.100.020.001 to 0.17
  Access to property2838.901622.201
 Road materials
  Cobble11.4022.800.440.01 to 8,86
  Concrete2737.502230.601.080.49 to 2.35
  Paving stone11.40811.100.110.002 to 0.90
  Dirt11.4034.200.290.005 to 3.89
  Asphalt4258.303751.401
Other road features
 Road width
  >28 m3447.221825.004.862.10 to 11.261.650.56 to 4.84
  >12 to <28 m2433.331825.003.331.37 to 7.961.790.63 to 5.08
  <12 m1419.443548.611.001.00
 Parked cars
  >152636.112433.330.860.39 to 1.870.490.19 to 1.23
  <15 to >61723.612534.720.540.24 to 1.230.550.22 to 1.36
  <62940.282331.941.001.00
 Traffic flow‡
  ≥2603650.001216.6713.335.03 to 35.3315.351.84 to 127.9
  35–2592737.502027.786.002.38 to 15.145.670.61 to 52.45
  0–34912.504055.561.001.00
 Pedestrian flow‡
  ≥143751.391622.225.352.33 to 12.365.222.09 to 13.07
  8–131926.391926.392.310.97 to 5.502.180.87 to 5.42
  0–71622.223751.391.001.00
  • In the multivariate analysis, the variables were adjusted among them.

  • *Refers to the direction of vehicles going north-south and vice versa, and east-west and vice versa; therefore, if these converge at an intersection, this is called four ways, and so forth.

  • †The hierarchy is based on the road width, number of lanes and road capacity.

  • ‡Estimated on a 5 min or 300 s lapse.

  • aOR, adjusted OR.