a. horni and k.w. axhausen ivt, eth zürich gridlock modeling with matsim
TRANSCRIPT
A. Horni and K.W. Axhausen IVT, ETH Zürich
GRIDLOCK MODELING WITH MATSIM
MOTIVATION
• gridlocks only roughly covered in current version of microsimulationse.g., MATSim models average working day traffic
+
• relevance/risk of gridlocks (?)
• context: joint seed project VPFW ETH
• analyze “gridlock” events (Zürich 2013, Aargau 2014)
• MATSim simulation experiments- network level- impedance components (e.g., look at intersections)
• extend solid base of gridlock modeling for aggregate transport modelinge.g., gridlocks and network-level MFDs (Geroliminis,
Daganzo, …)- microsimulation modeling- gridlock characteristics
PROCEEDING
METHOD• MATSim simulation experiments
outputoutput
executionexecution
replanningreplanning
scoringscoring
inputinput
planplanplanplan
planplan
planplan
planplan utils
METHOD• Zürich scenario
- full population- navigation net- car mode simulated
• simulation configuration- relaxed state normal conditions- tunnels blockage due to truck accident 17.04.2013
15:30- within-day rerouting with increasing replanning range
• analysis based on city count data to begin with- 10. / 16. / 17. / 18. / 25. of April 2013
RESULTS• link storage capacity, a.k.a.
jam densitynormal state
blocked state
RESULTS• link storage capacity, a.k.a. jam density
RESULTS
RESULTS• link storage capacity, a.k.a. jam density
RESULTS
RESULTS
blocked state
simcounts
RESULTS
Bucheggplatz morning rush hour
RESULTS• impedance modeling: missing components
- intersection dynamics: signals, priority rules, …- mode interactions: crosswalks, lane merging, …- driver behavior: slow drivers, driveaway delays, parking searchers, …- road geometry
• network modeling & its influence on the simulation dynamics
RESULTSissues with link storage capacity, … jam density
CONCLUSIONS & FUTURE WORK• inspection
- microsimulation (MATSim) capability to simulate gridlocks
- relevance/risk of gridlocks and concise definition- gridlock characteristics
• more and more suitable data- police department ZH, …
• other events- Aargau 2014- Zug 2011- Chur 2014
• impedance modeling issues- missing components, intersections- storage capacity