Mass cultural events, movies, and even the Olympic Games promote speed that is available, positive, thrilling and rewarding. Restaurants like McDonald's are a modern phenomenon concerned with social speed. Because people are busy, they often hesitate to take the time to sit down and enjoy their meal. Walking speeds in modern cities are becoming faster. The higher the rate of fast services in an urban sector the faster the walking speed of pedestrians.
People like to do as many things as possible at a high pace.
This helps promote further advances in technological designs for even greater speed. It is premature to predict or suggest that speed is the singular factor causing accidents. From an engineering perspective, the safety effect of speed limits is largely unknown. Design speed is defined as speed at which on a day with good weather and low traffic density, when driving conditions are governed solely by the geometric conditions of the road, a driver with average driving technique is able to drive safely without losing control. On straightaways, speeds may be higher.