Simulation of road traffic flow in Hangzhou
(2022) EITL01 20221Department of Electrical and Information Technology
- Abstract
- Is it possible to increase traffic flows and decrease stand stills in rush hour traffic by tweaking existing traffic light signals? A vehicle’s engine running on idle is not useful in physical terms and emits unnecessary exhausts. By investigating and observing signal phase times on site in Hangzhou, China, an effort was made to find out if it was possible to get better flow and thus lower emissions by changing the traffic signal programs. The Simulation of Urban MObility suite developed by the German Aerospace center, DLR, was used to simulate traffic. Three scenarios were simulated. Scenario one tried to find better and smoother flow by reducing the duration of the traffic signals’ phase times. Scenario two allowed both extended and... (More)
- Is it possible to increase traffic flows and decrease stand stills in rush hour traffic by tweaking existing traffic light signals? A vehicle’s engine running on idle is not useful in physical terms and emits unnecessary exhausts. By investigating and observing signal phase times on site in Hangzhou, China, an effort was made to find out if it was possible to get better flow and thus lower emissions by changing the traffic signal programs. The Simulation of Urban MObility suite developed by the German Aerospace center, DLR, was used to simulate traffic. Three scenarios were simulated. Scenario one tried to find better and smoother flow by reducing the duration of the traffic signals’ phase times. Scenario two allowed both extended and reduced signal phases. Scenario three was based on already existing signal phase times. The findings will show that it is possible to obtain increased throughput of vehicles if some green signal phases and thus cycle times are shortened. This translates as shorter time spent in congested traffic, which results in lower emissions per vehicle. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9078538
- author
- Brandt, Louise LU and Holmberg, Anders
- supervisor
- organization
- course
- EITL01 20221
- year
- 2022
- type
- M2 - Bachelor Degree
- subject
- keywords
- simulation, road traffic flow, traffic flow, traffic, sumo, netedit, dlr.de, zju, hangzhou, zhejiang, china, queue, queuing system, control, automatic control, tls, tli, phase time, cycle time, traffic light signal, traffic light intersection, pedestrian crossing, idling time, optimize traffic flow, traffic jam, un global goal, mfs, minor field study, sida, reduce emissions, emission, vehicle, pcu, matlab, python, xml, json, algorithm, variance, deviation, comparison, ratio, case, evacuation, scenario, green, detector, taz, traffic assignment zone, environment, carbon dioxide, randomtrips, flow, fringe, mingap, speeddev, departspeed, sigma, lanechangemodel, sl2015, commuter, public transport, busstop, osm, openstreetmap, sumocfg, traci, driving pattern, road lane, street lane, lane change, u-turn, intersection, junction, teleportation, teleport, route, depart, arrive, collision, street occupancy, occupancy
- report number
- LU/LTH-EIT 2022-862
- language
- English
- additional info
- Minor Field Study, MFS, Zhejiang University, ZJU, Hangzhou, Zhejiang, China, DEC2018-FEB2019
- id
- 9078538
- date added to LUP
- 2022-04-25 15:30:43
- date last changed
- 2022-05-01 03:42:03
@misc{9078538, abstract = {{Is it possible to increase traffic flows and decrease stand stills in rush hour traffic by tweaking existing traffic light signals? A vehicle’s engine running on idle is not useful in physical terms and emits unnecessary exhausts. By investigating and observing signal phase times on site in Hangzhou, China, an effort was made to find out if it was possible to get better flow and thus lower emissions by changing the traffic signal programs. The Simulation of Urban MObility suite developed by the German Aerospace center, DLR, was used to simulate traffic. Three scenarios were simulated. Scenario one tried to find better and smoother flow by reducing the duration of the traffic signals’ phase times. Scenario two allowed both extended and reduced signal phases. Scenario three was based on already existing signal phase times. The findings will show that it is possible to obtain increased throughput of vehicles if some green signal phases and thus cycle times are shortened. This translates as shorter time spent in congested traffic, which results in lower emissions per vehicle.}}, author = {{Brandt, Louise and Holmberg, Anders}}, language = {{eng}}, note = {{Student Paper}}, title = {{Simulation of road traffic flow in Hangzhou}}, year = {{2022}}, }