I would like to highlight three reasons of traffic block and some recommendations too.The first reason for the morning and evening traffic jam is the police officers who are stationed especially at the roundabouts. I've been observing the difference since past few months especially when I was trapped in the traffic at the chorniche road close to the roundabouts. Infact, the officers doesn't have an idea how to manage the traffic and there will be a misunderstanding between the drivers and the police officers like "should I go or shouldn't I" as their hand signals are confusing the drivers. They are less oriented and controlling the traffic without knowing the head and tail. I have enjoyed my trip and checked the time difference when the police is not around to control the traffic especially at the corniche road roundabouts. The result is people uses their driving skills and vehicles flows smoothly. There is an automatic control has already been applied on the system that is the individual responsibility and the heavy traffic fines. I think it's enough for an automatic traffic control system and it's already on place. Second thing, Government offices should arrange transportation for their employees too irregardless their nationality (let's say if an office contains 100 Qataris, of course 100 cars will also be there on road, and if the government could provide transportation for them like the Ras Gas, Oryx and Qatar Gas do, there will be an unbelievable change in the traffic block). Also, old vehicles, below 2000 models are also causing traffic blocks. I have witnessed an incident that an old vehicle (below 1998 model I guess) break down on the corniche road and caused 55% traffic block on last Thursday evening. I have just highlighted whatever i have observed and I may be wrong. But it's just my humble suggestion only laa.