fix(editor): fix avg speed travel time calculation for pattern stops

Author: landonreed

lib/editor/components/pattern/CalculateDefaultTimesForm.js

@@ -25,7 +25,10 @@ export default class CalculateDefaultTimesForm extends Component {
     const convertedSpeed = speed * 1000 / 60 / 60 // km/hr -> m/s
     for (var i = 0; i < patternStops.length; i++) {
       patternStops[i].defaultDwellTime = dwellTime
-      patternStops[i].defaultTravelTime = patternStops[i].shapeDistTraveled / convertedSpeed
+      if (i > 0) {
+        const distanceTraveled = patternStops[i].shapeDistTraveled - patternStops[i - 1].shapeDistTraveled
+        patternStops[i].defaultTravelTime = distanceTraveled / convertedSpeed
+      }
     }
     updateActiveEntity(activePattern, 'trippattern', {patternStops})
     saveActiveEntity('trippattern')