ZOB enroute controller reported a loss of separation occurred between a departing crj and an inbound...

Attributes
ACN	1580835
Time
Date	201809
Local Time Of Day	1201-1800
Place
Locale Reference	ZOB.ARTCC
State Reference	OH
Aircraft 1
Make Model Name	Regional Jet CL65 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Aircraft 2
Make Model Name	Aero Commander 500 Series
Flight Phase	Descent
Flight Plan	IFR
Person 1
Function	Enroute
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 11
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy

Narrative:

Aircraft Y was inbound that needed to descend; with aircraft X departing out of dtw. Aircraft X needed to climb above aircraft Y. We descended aircraft Y and told him to descend quickly; it looked as though it was not going to work; and we ended up turning aircraft Y a total of 35 degrees right; and aircraft X got a 20 degree left turn; neither of which seemed to do much; and separation was lost; barely. At HUD and det; we had a pretty complex situation with a military block on UHF; and other aircraft on other frequencies so the congestion was a major factor. Also; with the new metroplex redesign; the traffic volume in certain parts of the sector is different than it was; as well as the times at which we get busy. Aircraft Y did not seem to do anything to help the situation either. The lows were also very congested with frequencies and odd traffic. We just need to get more used to the new complexity and timing of busy traffic related to metroplex.

Original NASA ASRS Text

Title: ZOB Enroute Controller reported a loss of separation occurred between a departing CRJ and an inbound AC90; due in part to the complexity of the Metroplex.

Narrative: Aircraft Y was inbound that needed to descend; with Aircraft X departing out of DTW. Aircraft X needed to climb above Aircraft Y. We descended Aircraft Y and told him to descend quickly; it looked as though it was not going to work; and we ended up turning Aircraft Y a total of 35 degrees right; and Aircraft X got a 20 degree left turn; neither of which seemed to do much; and separation was lost; barely. At HUD and DET; we had a pretty complex situation with a military block on UHF; and other aircraft on other frequencies so the congestion was a major factor. Also; with the new Metroplex redesign; the traffic volume in certain parts of the sector is different than it was; as well as the times at which we get busy. Aircraft Y did not seem to do anything to help the situation either. The lows were also very congested with frequencies and odd traffic. We just need to get more used to the new complexity and timing of busy traffic related to Metroplex.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

ZOB enroute controller reported a loss of separation occurred between a departing crj and an inbound AC90; due in part to the complexity of the metroplex.