config: reduce car density and spacing

config.js

@@ -521,14 +521,14 @@ window.CONFIG = {
         // 'auto' derives the driving side from the location (left in the UK,
         // Japan, Australia, India, southern Africa, ...), 'left'/'right' forces it.
         trafficSide: 'auto',
-        dashM: 620,               // mean vehicle spacing on motorways
+        dashM: 1200,              // mean vehicle spacing on motorways
                                   // side roads use dashM * 2.4
         // dashM: 350              // denser traffic
         // dashM: 1200             // sparse traffic
         spreadKm: 45,             // gaussian sigma around the motorway network
         spreadFloor: 0.30,        // share that far side roads keep
         speed: 1.0,               // flow speed multiplier
-        density: 0.05,            // vehicle density multiplier
+        density: 0.01,            // vehicle density multiplier
         brightness: 1.0,          // vehicle light intensity
         motorwayDensity: 0.95,    // share of the density budget on motorways/trunk
         sideDensity: 0.35,        // share of the density budget on primary/secondary/tertiary