Banning trucks from built-up areas at peak times would be very sensible. Other GCC cities have implemented it - why not Doha?

But I don't want them in the Pearl at any time - unless they are actually needed for construction in the Pearl.

When (and If...) the Metro construction gets going we will all have a real problem with trucks in town. Bored tunnels need hundreds of truck movements to remove spoil and to deliver tunnel lining segments.
Doha is not going to be a pleasant place on the roads - even worse than it is now !!