road safety design standards and the asian highway network · 2016-10-14 · road safety in ah...
TRANSCRIPT
Road safety design standards
and the Asian Highway Network
iRAP Innovation Workshop
Greg Smith ([email protected])
21/09/2016
A World Free of High Risk Roads
A World Free of High Risk Roads
A World Free of High Risk Roads
Road safety in AH Network countries
• Serious crashes tend to be concentrated. Eg 33% of
deaths in India occur on National Highways, which
account for around 3% of roads
• High death rates on some road sections:
– 0.42 deaths /km /year in Bangladesh
– 0.61 deaths /km /year in Indonesia
– 1.9 deaths /km /year in India
• By comparison:
– 0.07 deaths /km /year: highest risk road in the UK
A World Free of High Risk Roads
AH Standard Summary
While developing the Asian Highway network, Parties shall give full
consideration to issues of safety.
A World Free of High Risk Roads
A World Free of High Risk Roads
Proposed RIFsHighway classification PRIMARY CLASS I CLASS II CLASS III
Terrain classification L R M S L R M S L R M S L R M S
PROPOSED ROAD INFRASTRUCTURE FACILITIES (RIF)
DelineationGood line marking (A-1), raised reflectorized pavement markers (A-3) and flexible delineator posts (A-4), and chevron markers on
curves (A-2)
Paved shoulder (m) 3 2.5 3 2.5 2 1.5 0.75
Rumble strips Shoulder rumble strips (C-2) Shoulder rumble strips at curves (C-2)
Sight distance Adequate sight distance (H-7)
RoadsidesClear zone (5-10m) (B-7) or safety barrier (B-1)
with safe end treatment (B-6)
Clear zone (5-10m) (B-7) or safety barrier (B-1) with safe end treatment (B-6) at
curves
Median treatmentMedian safety barrier (B-2) with safe
end treatment (B-6)Island 1-5m wide
Wide
CL (B-
4)
Centreline (rumble strips at curves) (C-2)
Lighting Street lighting (H-2) at intersections, at pedestrian crossings and where bicyclists are present
Intersection protected turn lanes N/A Protected turning pockets at intersections (E-1)
Intersection channelization N/A Islands at intersections to chanelize turning vehicles (E-2)
Roundabout N/A Roundabouts (E-3)
Pedestrian sidewalkSidewalk (D-2) with physical barrier
where pedestrians are presentPaved sidewalk (D-2) where pedestrians are present
Pedestrian crossings Grade separated (D-1) Signalised (D-2) Marked crossing (D-2) with refuge island (D-4)
Bicycle lanesOff-road path (G-1) where bicyclists are
presentMarked on road lanes (G-1) where bicyclists are present Shoulder
Motorcycle lanesExclusive lanes (G-2) where motorcycle
volumes are highNon-exclusive motorcycle lanes (G-3) where motorcycle volumes are high
Traffic calmingVisual traffic calming (F-2) at curves and
and intersections
Visual traffic calming (F-2) and/or speed humps (F-1) at curves, intersections and
pedestrian crossings
A World Free of High Risk Roads
Example: Class IILevel terrain, speed 80km/h, AADT = 10,000 vpd, 1 curve per km, 1 intersection per km
2 stars 3 stars 4 stars1 star
30.92
26.13
21.72
18.76
16.71
11.98
7.26
6.62
5.32
5.08
3.20
Baseline
+ delineation
+ paved shoulder
+ rumble strips
+ sight distance
+ roadside clearzone/barriers
+ median treatment
+ intersection lighting
+ int. protected turn lanes
+ int. chanelization
+ traffic calming
(16%)
(17%)
(14%)
(11%)
(28%)
(39%)
(9%)
(20%)
(5%)
(31%)
Star Rating ScoresRelative risk of death and serious injuryXX.XX – Star Rating Score, (XX%) – Reduction in risk
A World Free of High Risk Roads
Example: Class IILevel terrain, speed 80km/h, AADT = 10,000 vpd, 1 curve per km, 1 intersection per km
2 stars 3 stars 4 stars1 star
30.92
26.13
21.72
18.76
16.71
11.98
7.26
6.62
5.32
5.08
3.20
Baseline
+ delineation
+ paved shoulder
+ rumble strips
+ sight distance
+ roadside clearzone/barriers
+ median treatment
+ intersection lighting
+ int. protected turn lanes
+ int. chanelization
+ traffic calming
(16%)
(17%)
(14%)
(11%)
(28%)
(39%)
(9%)
(20%)
(5%)
(31%)
Star Rating ScoresRelative risk of death and serious injuryXX.XX – Star Rating Score, (XX%) – Reduction in risk
A World Free of High Risk Roads
Example: Class IILevel terrain, speed 80km/h, AADT = 10,000 vpd, 1 curve per km, 1 intersection per km
2 stars 3 stars 4 stars1 star
30.92
26.13
21.72
18.76
16.71
11.98
7.26
6.62
5.32
5.08
3.20
Baseline
+ delineation
+ paved shoulder
+ rumble strips
+ sight distance
+ roadside clearzone/barriers
+ median treatment
+ intersection lighting
+ int. protected turn lanes
+ int. chanelization
+ traffic calming
(16%)
(17%)
(14%)
(11%)
(28%)
(39%)
(9%)
(20%)
(5%)
(31%)
Star Rating ScoresRelative risk of death and serious injuryXX.XX – Star Rating Score, (XX%) – Reduction in risk
A World Free of High Risk Roads
Example: Class IILevel terrain, speed 80km/h, AADT = 10,000 vpd, 1 curve per km, 1 intersection per km
2 stars 3 stars 4 stars1 star
30.92
26.13
21.72
18.76
16.71
11.98
7.26
6.62
5.32
5.08
3.20
Baseline
+ delineation
+ paved shoulder
+ rumble strips
+ sight distance
+ roadside clearzone/barriers
+ median treatment
+ intersection lighting
+ int. protected turn lanes
+ int. chanelization
+ traffic calming
(16%)
(17%)
(14%)
(11%)
(28%)
(39%)
(9%)
(20%)
(5%)
(31%)
Star Rating ScoresRelative risk of death and serious injuryXX.XX – Star Rating Score, (XX%) – Reduction in risk
A World Free of High Risk Roads
Example: Class IILevel terrain, speed 80km/h, AADT = 10,000 vpd, 1 curve per km, 1 intersection per km
2 stars 3 stars 4 stars1 star
30.92
26.13
21.72
18.76
16.71
11.98
7.26
6.62
5.32
5.08
3.20
Baseline
+ delineation
+ paved shoulder
+ rumble strips
+ sight distance
+ roadside clearzone/barriers
+ median treatment
+ intersection lighting
+ int. protected turn lanes
+ int. chanelization
+ traffic calming
(16%)
(17%)
(14%)
(11%)
(28%)
(39%)
(9%)
(20%)
(5%)
(31%)
Star Rating ScoresRelative risk of death and serious injuryXX.XX – Star Rating Score, (XX%) – Reduction in risk
A World Free of High Risk Roads
Example: Class IILevel terrain, speed 80km/h, AADT = 10,000 vpd, 1 curve per km, 1 intersection per km
2 stars 3 stars 4 stars1 star
30.92
26.13
21.72
18.76
16.71
11.98
7.26
6.62
5.32
5.08
3.20
Baseline
+ delineation
+ paved shoulder
+ rumble strips
+ sight distance
+ roadside clearzone/barriers
+ median treatment
+ intersection lighting
+ int. protected turn lanes
+ int. chanelization
+ traffic calming
(16%)
(17%)
(14%)
(11%)
(28%)
(39%)
(9%)
(20%)
(5%)
(31%)
Star Rating ScoresRelative risk of death and serious injuryXX.XX – Star Rating Score, (XX%) – Reduction in risk
A World Free of High Risk Roads
Example: Class IILevel terrain, speed 80km/h, AADT = 10,000 vpd, 1 curve per km, 1 intersection per km
2 stars 3 stars 4 stars1 star
30.92
26.13
21.72
18.76
16.71
11.98
7.26
6.62
5.32
5.08
3.20
Baseline
+ delineation
+ paved shoulder
+ rumble strips
+ sight distance
+ roadside clearzone/barriers
+ median treatment
+ intersection lighting
+ int. protected turn lanes
+ int. chanelization
+ traffic calming
(16%)
(17%)
(14%)
(11%)
(28%)
(39%)
(9%)
(20%)
(5%)
(31%)
Star Rating ScoresRelative risk of death and serious injuryXX.XX – Star Rating Score, (XX%) – Reduction in risk
A World Free of High Risk Roads
Example: Class IILevel terrain, speed 80km/h, AADT = 10,000 vpd, 1 curve per km, 1 intersection per km
2 stars 3 stars 4 stars1 star
30.92
26.13
21.72
18.76
16.71
11.98
7.26
6.62
5.32
5.08
3.20
Baseline
+ delineation
+ paved shoulder
+ rumble strips
+ sight distance
+ roadside clearzone/barriers
+ median treatment
+ intersection lighting
+ int. protected turn lanes
+ int. chanelization
+ traffic calming
(16%)
(17%)
(14%)
(11%)
(28%)
(39%)
(9%)
(20%)
(5%)
(31%)
Star Rating ScoresRelative risk of death and serious injuryXX.XX – Star Rating Score, (XX%) – Reduction in risk
A World Free of High Risk Roads
Example: Class IILevel terrain, speed 80km/h, AADT = 10,000 vpd, 1 curve per km, 1 intersection per km
2 stars 3 stars 4 stars1 star
30.92
26.13
21.72
18.76
16.71
11.98
7.26
6.62
5.32
5.08
3.20
Baseline
+ delineation
+ paved shoulder
+ rumble strips
+ sight distance
+ roadside clearzone/barriers
+ median treatment
+ intersection lighting
+ int. protected turn lanes
+ int. chanelization
+ traffic calming
(16%)
(17%)
(14%)
(11%)
(28%)
(39%)
(9%)
(20%)
(5%)
(31%)
Star Rating ScoresRelative risk of death and serious injuryXX.XX – Star Rating Score, (XX%) – Reduction in risk
A World Free of High Risk Roads
Example: Class IILevel terrain, speed 80km/h, AADT = 10,000 vpd, 1 curve per km, 1 intersection per km
2 stars 3 stars 4 stars1 star
30.92
26.13
21.72
18.76
16.71
11.98
7.26
6.62
5.32
5.08
3.20
Baseline
+ delineation
+ paved shoulder
+ rumble strips
+ sight distance
+ roadside clearzone/barriers
+ median treatment
+ intersection lighting
+ int. protected turn lanes
+ int. chanelization
+ traffic calming
(16%)
(17%)
(14%)
(11%)
(28%)
(39%)
(9%)
(20%)
(5%)
(31%)
Star Rating ScoresRelative risk of death and serious injuryXX.XX – Star Rating Score, (XX%) – Reduction in risk
A World Free of High Risk Roads
Example: Class IILevel terrain, speed 80km/h, AADT = 10,000 vpd, 1 curve per km, 1 intersection per km
2 stars 3 stars 4 stars1 star
Star Rating ScoresRelative risk of death and serious injuryXX.XX – Star Rating Score, (XX%) – Reduction in risk
30.92
26.13
21.72
18.76
16.71
11.98
7.26
6.62
5.32
5.08
3.20
Baseline
+ delineation
+ paved shoulder
+ rumble strips
+ sight distance
+ roadside clearzone/barriers
+ median treatment
+ intersection lighting
+ int. protected turn lanes
+ int. chanelization
+ traffic calming
(16%)
(17%)
(14%)
(11%)
(28%)
(39%)
(9%)
(20%)
(5%)
(31%)
A World Free of High Risk Roads
Vehicle Occupants Star Rating Scores
2 stars 3 stars 4 stars1 star 5 stars
L = level, R = Rolling, M = Mountainous, S = Steep
Highway classification Primary Class I Class II Class III
Terrain classification L R M S L R M S L R M S L R M S
Baseline 30.92 21.90 8.73 10.46 22.72 14.83 10.62 6.51 10.39 9.39 6.00 3.02
+ delineation 26.13 17.25 6.42 7.53 17.90 10.70 7.41 4.43 8.59 7.16 4.43 2.18
+ paved shoulder 21.72 14.10 5.14 6.00 15.53 9.11 6.56 3.91 7.40 6.06 4.28 2.10
+ rumble strips 18.76 11.99 4.53 5.18 14.71 8.47 5.96 3.50 7.17 5.61 3.86 1.87
+ sight distance 16.71 10.94 4.27 4.92 13.13 7.80 5.57 3.30 6.51 5.23 3.66 1.78
+ roadside clearzone/barriers 11.98 7.57 3.29 3.61 12.42 6.78 4.62 2.64 6.15 4.52 2.98 1.41
+ median treatment 7.26 4.20 1.82 1.88 9.11 4.75 3.06 1.69 4.58 3.11 1.90 0.86
+ intersection lighting 6.62 3.87 1.74 1.80 8.62 4.54 2.94 1.63 4.38 2.99 1.84 0.84
+ int. protected turn lanes 5.32 3.21 1.58 1.64 7.62 4.12 2.70 1.51 3.96 2.75 1.71 0.78
+ int. chanelization 5.08 3.08 1.55 1.61 7.49 4.07 2.67 1.49 3.90 2.72 1.70 0.78
+ traffic calming 4.53 2.80 1.48 1.54 7.06 3.89 2.56 1.44 3.72 2.61 1.64 0.75
+ roundabout (instead of
regular int. and traffic calming) 3.20 2.11 1.31 1.38 5.98 3.43 2.30 1.30 3.27 2.35 1.51 0.70
A World Free of High Risk Roads
Vehicle Occupants Star Rating Scores
2 stars 3 stars 4 stars1 star 5 stars
L = level, R = Rolling, M = Mountainous, S = Steep
Highway classification Primary Class I Class II Class III
Terrain classification L R M S L R M S L R M S L R M S
Baseline 22.72 14.83 10.62 6.51 10.39 9.39 6.00 3.02
+ delineation 17.90 10.70 7.41 4.43 8.59 7.16 4.43 2.18
+ paved shoulder 15.53 9.11 6.56 3.91 7.40 6.06 4.28 2.10
+ rumble strips 14.71 8.47 5.96 3.50 7.17 5.61 3.86 1.87
+ sight distance 13.13 7.80 5.57 3.30 6.51 5.23 3.66 1.78
+ roadside clearzone/barriers 12.42 6.78 4.62 2.64 6.15 4.52 2.98 1.41
+ median treatment 9.11 4.75 3.06 1.69 4.58 3.11 1.90 0.86
+ intersection lighting 8.62 4.54 2.94 1.63 4.38 2.99 1.84 0.84
+ int. protected turn lanes 7.62 4.12 2.70 1.51 3.96 2.75 1.71 0.78
+ int. chanelization 7.49 4.07 2.67 1.49 3.90 2.72 1.70 0.78
+ traffic calming 7.06 3.89 2.56 1.44 3.72 2.61 1.64 0.75
+ roundabout (instead of
regular int. and traffic calming) 5.98 3.43 2.30 1.30 3.27 2.35 1.51 0.70
A World Free of High Risk Roads
Vehicle Occupants Star Rating Scores
2 stars 3 stars 4 stars1 star 5 stars
L = level, R = Rolling, M = Mountainous, S = Steep
Highway classification Primary Class I Class II Class III
Terrain classification L R M S L R M S L R M S L R M S
Baseline 10.39 9.39 6.00 3.02
+ delineation 8.59 7.16 4.43 2.18
+ paved shoulder 7.40 6.06 4.28 2.10
+ rumble strips 7.17 5.61 3.86 1.87
+ sight distance 6.51 5.23 3.66 1.78
+ roadside clearzone/barriers 6.15 4.52 2.98 1.41
+ median treatment 4.58 3.11 1.90 0.86
+ intersection lighting 4.38 2.99 1.84 0.84
+ int. protected turn lanes 3.96 2.75 1.71 0.78
+ int. chanelization 3.90 2.72 1.70 0.78
+ traffic calming 3.72 2.61 1.64 0.75
+ roundabout (instead of
regular int. and traffic calming) 3.27 2.35 1.51 0.70
A World Free of High Risk Roads
Vehicle Occupants Star Rating Scores
2 stars 3 stars 4 stars1 star 5 stars
L = level, R = Rolling, M = Mountainous, S = Steep
Highway classification Primary Class I Class II Class III
Terrain classification L R M S L R M S L R M S L R M S
Baseline
+ delineation
+ paved shoulder
+ rumble strips
+ sight distance
+ roadside clearzone/barriers
+ median treatment
+ intersection lighting
+ int. protected turn lanes
+ int. chanelization
+ traffic calming
+ roundabout (instead of
regular int. and traffic calming)