my @unsortedArray;
foreach my $received_xml_post (@ {$xml_post_array{'data'}})
{
   push @unsortedArray, {
                         'ID' => $received_xml_post->{'ID'},
                         'Distance => $received_xml_post->{'Distance'},
                         'RouteDistance' => $received_xml_post->{'RouteDistance'}};
}

my @sortedArray = sort { if( $a->{RouteDistance} == 0) {return -1} else {$a->{RouteDistance} <=> $b->{RouteDistance} $a->{Distance} <=> $b->{Distance} } @unsortedArray;