The FIA’s Charlie Whiting has confirmed that DRS will not be allowed at Eau Rouge this weekend to avoid the risk that a driver thinks it he has returned his wing to its normal position when he might not have.
The FIA had a similar view prior to Monaco, where the tunnel was an issue.
Although the explanation might sound odd, during practice in Turkey Mark Webber went into Turn 8 with his wing open when he thought he had closed it. He went off the road, and continued without major drama.
The feeling is that Eau Rouge is too marginal to risk something like that happening.
“We’re not going to allow DRS to be used through Eau Rouge during practice,” said Whiting. “We want to avoid drivers going through thinking that their wing is in the right position, when it might not be. We think this is the correct safety measure to have taken at such a fast, demanding corner.”
Whiting also made some interesting observations about crowd control at the Belgian track: “Spa’s obviously a great challenge for the drivers, but it can be quite a challenge for the circuit officials, also, mainly on account of its length. Any long circuit is harder from a security point of view and it can be hard to get the crowds under control. We always have to watch out for spectators climbing fences.”
Adam Cooper F1 
I have driven the spa circuit in an XJRS Lister and Eau Rouge comes at you like a wall. Total concentration required – in an F! car with DRS open one would need to change ones pants after a few laps. I dont think that even the red bulls could do it without going brown!
So if DRS is inherently dangerous why allow it at all?
He’s joking right? “In case drivers get it wrong?” Why not just add a governor and run through the place at 50mph?
People wonder why F1 viewer and fanship is down?
I always thought that the throttle pedal worked both was? Do we now have to protect drivers from themselves deciding how they drive the car?