arangosh> var examples = require("org/arangodb/graph-examples/example-graph.js");
arangosh> var g = examples.loadGraph("routeplanner");
arangosh> db._query("RETURN GRAPH_RADIUS("
........> + "'routeplanner', {direction : 'outbound', weight : 'distance'})"
........> ).toArray();
[ 
  550 
]