ROAD HIERARCHY by Bothwel Mayumbelo.pdf

ROAD HIERARCHY Road Hierarchy: is the classification of roads based on their functions and capabilities. Every City, Region and Country has a combination of different road with different purposes.  Cul-de-sac. Local (streets) Collectors Arterials (major and minor) Controlled-access hig...

ROAD HIERARCHY Road Hierarchy: is the classification of roads based on their functions and capabilities. Every City, Region and Country has a combination of different road with different purposes.  Cul-de-sac. Local (streets) Collectors Arterials (major and minor) Controlled-access highway (Freeway, motorways and expressways) Advantages Disadvantages Cul-De-Sac 1. Traffic Safety 1.Limited connectivity (neighborhood) 2. Privacy 2. Impractical for active modes (NMT’s) 3. Play areas Local (streets) 1. Direct Access to Properties 1.Limited Capacity 2. Low Speeds 2.Congestion in Residential Areas Collectors 1.Local Access (schools, etc.) 1.Limited Capacity (rush hour) 2.Connectivity ( local to arterials) 2.Not Suitable for Long-Distance Travel 3.Lower Speeds (safer for local traffic) Arterials 1.Connectivity: (Link neighborhoods, commercial areas, 1.Congestion and highways) 2.Intermediate Traffic Flow: (Handle moderate traffic 2.Intersection Delays: (Signalized intersections may cause between local roads and highways) delays). FREEWAY 1.High Traffic Flow 1.Limited Access to Properties 2.Safety (limited access) 2.Prohibits Pedestrians and Bicycles 3.Long-Distance Connectivity 3.Parking Prohibited 4.Fast Travel 4.Expensive Construction and Maintenance Relationship between mobility and accessibility  END OF PRESANTATION BY BOTHWEL MAYUMBELO ~B~