public function distanceFrom(LatLng $coord)
    {
        $latDist = abs($this->getLat() - $coord->getLat());
        $lngDist = abs($this->getLng() - $coord->getLng());

        $radDist = deg2rad(sqrt(pow($latDist, 2) + pow($lngDist, 2)));

        return $radDist * UnitsType::EARTH_RADIUS;
    }