docs/models/operativ.md

+# Operational models
+Four operational models are implemented in `jpscore`. They define the update rules how pedestrian move from one step to the next.
+
+
+### [Generalized Centrifugal Force Model][#GCFM]  
+A force-based model.
+
+Usage:
+
+```xml
+<model operational_model_id="1" description="gcfm">
+```
+
+### [Gompertz Model][#gompertz]  
+A force-based model.
+
+Usage:
+```xml
+<model operational_model_id="2" description="gompertz">
+```
+
+
+### [Collision-free speed model][#Tordeux2015]  
+
+A velocity-based model
+
+Usage:
+```xml
+<model operational_model_id="3" description="Tordeux2015">
+```
+
+### [Wall-avoidance model][#ModelGraf2015]  
+A velocity-based model
+
+Usage:
+```xml
+<model operational_model_id="4" description="gradnav">
+```
+
+[#GCFM]: http://journals.aps.org/pre/abstract/10.1103/PhysRevE.82.046111 "Mohcine Chraibi, Armin Seyfried, and Andreas Schadschneider Phys. Rev. E 82, 046111"
+
+[#gompertz]: http://trg-india.org/trg_conference_2015 "Kemloh Wagoum, Armel Ulrich, Mohcine Chraibi, Jun Zhang and Gregor Lämmel. JuPedSim: An Open Framework for Simulating and Analyzing the Dynamics of Pedestrians. In 3rd Conference of Transportation Research Group of India, 2015."
+
+[#Tordeux2015]: http://arxiv.org/abs/1512.05597)  "Tordeux, Antoine, Chraibi, Mohcine and Seyfried, Armin, Collision-free speed model for pedestrian dynamics. In Traffic and Granular Flow  '15, to appear."
+
+[#ModelGraf2015]: https://owncloud.zam.kfa-juelich.de/index.php/s/MomKWVu6mFvnrSf "Arne, Graf Master thesis"