yes this is the rajendrapool of ER :P but rjo is more dear & costly..& here there are lot of alternatives but for rjo there is no alternative. for eg,trains which start from SDAH/KOAA & want to go towards BWN/ASN can take DAKE route which is having the facility of Third Line,trains originating from HWH need not cross any of them....only trains starting from SDAH/KOAA & going towards BAK Loop has to use this bridge compulsorily but in case of RJO,even freights also have to use it.