Several efforts connected with traffic‐noise problems in Greater Cairo have been conducted since the 1970s. They concerned both the traffic‐noise measurements and countermeasures taken. During 30 years, the level of traffic noise has been changing, it increased seriously in the last 10 years in spite of countermeasures taken, due to a significant increase in the number of cars. Measurements taken for traffic‐noise levels indicated that noise levels in the city are too high. So that makes the city in the front of Capitals from aspect of noise level and continuous periods. In our paper, we have presented measurements and countermeasures taken as follows: (1) We present 30 years of traffic‐noise problems in Greater Cairo and the measurements taken. (2) We present the policies for traffic‐noise problems and countermeasures taken; this contains the efforts of the Egyptian Ministry of Environment, City Hall, traffic administration of the city, recommendations of the Symposium of Noise and Traffic Problems in Greater Cairo 1988, and recommendations of the Report of the Egyptian Academy of Scientific Research and Technology, and the Egyptian National Research Center 1994. This is to evaluate this experiment, and address planning for the future to make Greater Cairo a quiet city. (3) Conclusions and remarks will be discussed.