code: public double getTimeLeftEstimate(int sequenceNum) {
  		double timeCounter = 0.0;
  		for (int i = sequenceNum-this.sequenceNumberStart; i < this.getDTs().length; i++) {
  			timeCounter += this.getDTs()[i];
  		}
  		return timeCounter;
  	}
docs: Get an estimate of the time left to move on this {@link Trajectory}
  given the current path index. The estimate is based on this {@link Trajectory}'s
  temporal profile.
  @param sequenceNum The path index from which the estimate should be computed.
  @return An estimate of the time left to move on this {@link Trajectory}
  given the current path index.