SLIDE 1
High Motorcycle Population Countries
85% 55% 46% 93% 77% 60% 72% 73%
Motorcycle Lane Associate Professor Dr. Law Teik Hua Road Safety - - PowerPoint PPT Presentation
Motorcycle Lane Associate Professor Dr. Law Teik Hua Road Safety - - PowerPoint PPT Presentation
Road Safety Research Center, UPM Developing Speed-flow-density Relationship for the Segregated Motorcycle Lane Associate Professor Dr. Law Teik Hua Road Safety Research Center High Motorcycle Population Countries 85% 77% 60% 55% 93% 72%
SLIDE 2
SLIDE 3
World Road Deaths Statistics
Source: WHO, 2018
SLIDE 4
Malaysia Registered Motorcycles
8 m, 2008 12 m, 2017
SLIDE 5
Malaysia Motorcycle Deaths 2008 : 3,898 deaths 2017 : 4,348 deaths
SLIDE 6
Malaysia Motorcycle Deaths
- 68% of all road crash injuries
- 20x higher risk than cars
SLIDE 7
Motorcycle Lanes
- First exclusive MC lane in the
world
- 30 km long (per direction)
- 39% mc crashes
SLIDE 8
MC lane in Kedah, Malaysia
SLIDE 9
MC lane in Quezon City, Philippines
SLIDE 10
MC lane in Taipei, Taiwan
SLIDE 11
MC lane in Taipei, Taiwan
SLIDE 12
MC lane in Phnom Penh, Cambodia
SLIDE 13
Research Gap
- Max flow
- Jam density
- Critical density
- Critical speed
SLIDE 14
Speed – Flow – Density Relationship
SLIDE 15
Experiment Design & Data Collection
Stage 1
- Federal Highway (Route 2)
- 2.4, 3.0 and 3.3 m
- Initial portion of a stable flow
(Low density, high speed)
- Flow at capacity or near-jam
density
SLIDE 16
Experiment Design & Data Collection
Stage 2
- Experimental study
- UPM
- 1.5, 1.7 and 1.9 m
SLIDE 17
Experiment Design & Data Collection
Stage 3
- Experimental study
- Federal Highway (Route 2)
- 1.4, 1.6 and 2.0 m
SLIDE 18
Speed – Flow – Density Relationship
SLIDE 19
Headway and Space Riding Patterns
<1.7 m >1.7 m
Headway Space
SLIDE 20
Mc Speed vs Mc Density (Headway Pattern)
S Jam density = 640
SLIDE 21
Mc Flow vs Mc Density (Headway Pattern)
Max Flow = 3060 Critical density = 235
SLIDE 22
Mc Speed vs Mc Flow (Headway Pattern)
Critical Speed = 13 Unstable flow Stable flow
SLIDE 23
Mc Speed vs Mc Density (Space Pattern)
Jam density = 0.46
SLIDE 24
Mc Flow vs Mc Density (Space Pattern)
Max Flow = 2207 0.166 mc/m-sq (6 m-sq/mc)
SLIDE 25
Mc Speed vs Mc Flow (Space Pattern)
Critical Speed = 13 Stable flow Unstable flow
SLIDE 26
Conclusions
Headway Riding Pattern (1.4 m – 1.7 m) Max flow : 3,060 mc/hr/lane Critical speed : 13 km/hr Critical density : 235 mc/km/lane Headway Riding Pattern (2.8 m – 3.4 m) Max flow : 6,120 mc/hr
SLIDE 27
Conclusions
Space Riding Pattern (> 1.7 m) Max flow : 2,207 mc/hr/m Critical speed : 13 km/hr Critical density : 0.166 mc/m-sq Space Riding Pattern (> 1.7 m) Motorcycle lane width : 2.0 m Max flow : 4,414 mc/hr
SLIDE 28