graph G {
	node [shape=Mcircle fontname="Arial" fillcolor="yellow1" style="filled"]; USER;
	node [shape=box fontname="Arial" fillcolor="indianred1" style="filled"]; OD2TRIPS;
	node [shape=box fontname="Arial" fillcolor="lightskyblue" style="filled"]; "SUMO/GUISIM";

	subgraph T0 {
		rank=same
		node [shape=box fontname="Arial" fillcolor="goldenrod" style="filled"]; DUAROUTER;
		node [shape=box fontname="Arial" fillcolor="goldenrod1" style="filled"]; DFROUTER;
		node [shape=box fontname="Arial" fillcolor="goldenrod2" style="filled"]; JTRROUTER;
	}

	subgraph T1 {
		rank=same
		node [shape=ellipse fontname="Arial" fillcolor="goldenrod" style="filled"]; trips;
		node [shape=ellipse fontname="Arial" fillcolor="goldenrod" style="filled"]; flows;
		node [shape=ellipse fontname="Arial" fillcolor="goldenrod" style="filled"]; cell_routes;
		node [shape=ellipse fontname="Arial" fillcolor="goldenrod" style="filled"]; artemis_routes;
	}

	subgraph T2 {
		rank=same
		node [shape=ellipse fontname="Arial" fillcolor="goldenrod1" style="filled"]; routes;
		node [shape=ellipse fontname="Arial" fillcolor="goldenrod2" style="filled"]; route_alternatives;
		node [shape=octagon fontname="Arial" fillcolor="lightcyan" style="filled"]; "emitter definitions";
	}


	USER -- trips [arrowhead="normal" fontname="Arial" fontsize="10"];
	USER -- flows [arrowhead="normal" fontname="Arial" fontsize="10"];
	USER -- routes [arrowhead="normal" fontname="Arial" fontsize="10"];

	OD2TRIPS -- trips [arrowhead="normal" label="--output" fontname="Arial" fontsize="10"];

	trips -- DUAROUTER [arrowhead="normal" label="--trip-defs" fontname="Arial" fontsize="10"];
	cell_routes -- DUAROUTER [arrowhead="normal" label="--cell-input" fontname="Arial" fontsize="10"];
	artemis_routes -- DUAROUTER [arrowhead="normal" label="--artemis-input" fontname="Arial" fontsize="10"];
	flows -- DUAROUTER [arrowhead="normal" label="--flow-definition" fontname="Arial" fontsize="10"];
	flows -- JTRROUTER [arrowhead="normal" label="--flow-definition" fontname="Arial" fontsize="10"];

	DUAROUTER -- routes [arrowhead="normal" label="--output" fontname="Arial" fontsize="10"];
	DUAROUTER -- route_alternatives [arrowhead="normal" label="--output (+.alt)" fontname="Arial" fontsize="10"];
	JTRROUTER -- routes [arrowhead="normal" label="--output" fontname="Arial" fontsize="10"];
	DFROUTER -- "emitter definitions" [arrowhead="normal" label="--emitters-output" fontname="Arial" fontsize="10"];

	routes -- "SUMO/GUISIM" [arrowhead="normal" label="--route-files" fontname="Arial" fontsize="10"];
	"emitter definitions" -- "SUMO/GUISIM" [arrowhead="normal" label="--additional-files" fontname="Arial" fontsize="10"];
	routes -- DUAROUTER [arrowhead="normal" label="--sumo-input" fontname="Arial" fontsize="10"];

	route_alternatives -- DUAROUTER [arrowhead="normal" label="--alternatives" fontname="Arial" fontsize="10"];
}