2. A. Horni and K.W. Axhausen IVT, ETH Zürich GRIDLOCK MODELING WITH MATSIM

3. MOTIVATION gridlocks only roughly covered in current version of microsimulations e.g., MATSim models average working day traffic + relevance/risk of gridlocks (?)

4. 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 modeling e.g., gridlocks and network-level MFDs (Geroliminis, Daganzo, …) -microsimulation modeling -gridlock characteristics PROCEEDING

5. METHOD MATSim simulation experiments output execution replanning scoring input plan utils

6. 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

7. RESULTS link storage capacity, a.k.a. jam density normal state blocked state

8. RESULTS link storage capacity, a.k.a. jam density

9. RESULTS

10. link storage capacity, a.k.a. jam density

11. RESULTS

12. blocked state sim counts

13. RESULTS Bucheggplatz morning rush hour

14. 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

15. RESULTS issues with link storage capacity, … jam density

16. 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