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Intersection Signalization Plan for High Capacity Bus System in Delhi: For Better Air Quality. By Rakesh Kumar Project Scientist, TRIPP, IIT-Delhi, New Delhi-16. What is Signalization. Signalization is a set of turning movements given right of way without confliction at intersection.
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Intersection Signalization Plan for High Capacity Bus System in Delhi: For Better Air Quality By Rakesh Kumar Project Scientist, TRIPP, IIT-Delhi, New Delhi-16
What is Signalization Signalization is a set of turning movements given right of way without confliction at intersection.
Deficiencies In Existing Signalization • Free left turning movements prohibits pedestrian crossing and safety • No safe right turning movements for NMV • No Bus priority Signalization • Long Signal Cycle length increases Travel time, Delay time and pollution
Infrastructural Benefits of HCBS for Signalization • Segregated Lanes prohibits free left turning • Segregated lanes provides bus priority Signalization • Segregated lanes provides for the safe pedestrian movement • Segregated lane does not increase the total cycle length. Proposed reduced cycle length decreases travel time and delay time and minimize pollution hazards.
Signalization in HCBS and its advantages • The HCBS corridor has 4 representative types of signal control plans for following four categories of intersections in the corridor: • Four-armed junctions • Three-armed junctions • Foot of flyover junctions • Mid-Block Junctions
Existing Corridor Flow Density Speed Travel Time Delay Time Stop Time Veh/h Veh/Km Km/h H: mm:ss h:mm:ss h:mm:ss System 16689 38.3 23.5 0:05:07 0:03:24 0:03:34 2W_wheeler 5682 9.9 25.9 0:04:19 0:03:06 0:02:48 3W_Auto 1295 3.6 15.7 0:05:50 0:03:49 0:03:33 CR_Cars 7798 14 26.7 0:04:07 0:02:54 0:02:39 Cycle 1440 9.3 6.4 0:12:24 0:06:23 0:10:54 Cycle Rickshaw 129 0.4 7.5 0:09:38 0:03:37 0:07:53 LCV 67 0.2 18.7 0:05:07 0:03:37 0:03:24 Truck 34 0.1 20.4 0:06:34 0:05:20 0:05:04 BUS 244 0.8 16.9 0:15:20 0:12:18 0:11:48 Simulation Result…. Existing condition
Coordinated Proposed Corridor Flow Density Speed Travel Time Delay Time Stop Time Veh/h Veh/Km Km/h h: mm:ss h:mm:ss h:mm:ss System 21245 37.1 16.9 0:05:11 0:03:35 0:03:27 2W_wheeler 6943 9.7 17.9 0:04:31 0:03:18 0:02:43 3W_Auto 1709 2.9 14.3 0:05:42 0:03:42 0:03:31 CR_Cars 9942 12.4 18.6 0:04:39 0:03:45 0:03:04 Cycle 1889 10.8 7.5 0:10:01 0:04:01 0:08:01 Cycle Rickshaw 244 0.5 7.4 0:07:42 0:01:42 0:07:49 LCV 81 0.1 17.6 0:04:37 0:03:06 0:02:48 Truck 60 0.1 19.8 0:03:40 0:02:26 0:02:01 BUS 477 0.6 18.6 0:03:54 0:02:23 0:02:15 Simulation Result…. HCBS condition
Software used Highway Capacity Manual (2000) AIMSUN v.4.2
Conclusions HCBS promotes Better Environmental Air Quality NMV and Pedestrian mobility and safety improved Travel time and Delay time Increases Public Transport Priority is achieved So considering safety and health of commuter and pedestrian, present signal phasing time plan is designed to achieve the safe,environmental-friendly and efficient movement of vehicular and pedestrian traffic on HCBS corridor in Delhi