AN ACR MD80 SUPER 80 FLC TOOK OFF ON RWY 36R AND TURNED TO THEIR ASSIGNED HDG OF 345 DEGS AND AT THE SAME TIME A COMMUTER TURBOPROP TOOK OFF FROM RWY 36L AND MAINTAINED RWY HDG. THE ACFT PASSED WITHIN SEVERAL HUNDRED FT OF EACH OTHER AT LOW ALT.

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THE DFW WEST TWR ISSUED US CLRNC TO TKOF ON RWY 36R AND TO FLY HDG 345 DEGS. AT SOME POINT DURING OUR TKOF ROLL THE TWR ALSO ISSUED A TKOF CLRNC TO AN ACR COMMUTER TURBOPROP ON RWY 36L. UPON REACHING 300 FT AGL; WE TURNED TO THE ASSIGNED HDG OF 345 DEGS. DURING THE TURN THE CAPT SAID HE THOUGHT HE SAW AN ACFT FLY DIRECTLY BENEATH US. SECONDS LATER AT 700 FT AGL; WE GOT A TCASII WARNING TO MONITOR VERT SPD WHICH I DID BY CONTINUING THE CLB AT TKOF PWR AND FLAPS 11 DEGS. AT ABOUT 1500 FT AGL WE RECEIVED A CLR OF CONFLICT. WHEN THE CAPT ASKED THE TWR ABOUT ISSUING A CLRNC FOR ONE TKOF ACFT TO TURN IN FRONT OF ANOTHER; THE TWR RESPONDED THEY DID EVERY DAY. THIS IS AN UNACCEPTABLE; UNSAFE PROC INVITING DISASTER. I DON'T KNOW IF THE COMMUTER CREW SAW US; BUT IF HE DIDN'T AND WE LOST AN ENG THE POTENTIAL FOR A MIDAIR IS ENORMOUS. THERE ARE ALSO WAKE TURB CONSIDERATIONS FOR THE TURBOPROP. I BELIEVE THIS PROC NEEDS TO BE REVIEWED IMMEDIATELY AND MODIFIED TO PREVENT A DISASTER FROM HAPPENING IN THE FUTURE.