code: function _cleanArrivals(results) {
      // List of Arrivals to Keep
      let arrivals = [];
  
      // Get unique arrivals
      let arrivalTimes = [];
      for ( let i = 0; i < results.length; i++ ) {
        if ( arrivalTimes.indexOf(results[i].destination.arrival.toTimestamp()) === -1 ) {
          arrivalTimes.push(results[i].destination.arrival.toTimestamp());
        }
      }
  
      // Pick best Trip for each arrival
      for ( let i = 0; i < arrivalTimes.length; i++ ) {
        let arrivalTime = arrivalTimes[i];
        let arrival = undefined;
  
        // Get Trips with arrival time
        for ( let j = 0; j < results.length; j++ ) {
          let result = results[j];
          if ( result.destination.arrival.toTimestamp() === arrivalTime ) {
            if ( arrival === undefined )  {
              arrival = result;
            }
            else if ( result.origin.departure.toTimestamp() > arrival.origin.departure.toTimestamp() ) {
              arrival = result;
            }
            else if ( result.origin.departure.toTimestamp() === arrival.origin.departure.toTimestamp() && result.length < arrival.length ) {
              arrival = result;
            }
          }
        }
  
        // Add arrival to list
        arrivals.push(arrival);
  
      }
  
      // Return arrivals
      return arrivals;
    }
docs: Pick best Trip with equal arrivals
  @param results
  @returns {Array}
  @private