Writing Feedback / Traffic problems - a headache issue that we have to solve right now for the society development [8]

Help me to perfect my essay. :)
I need it to pass my entrance exam.
Traffic plays an undeniable role in socio-economic development but besides that it also gives us many tough issues. First and foremost, the most common problem is traffic jam. The uneven development of social and physical facilities brings us a drawback that road quality improving do not meet vehicles number increasing. A huge number of vehicles flow in small road during rush hours makes it not smoothly, and became stuck. Time wasted for traffic jam is harmful in the fast paced world we live. One more thing, people's thought is not good enough to obey to traffic rules well. Without the appearing of cop, numerous participants traffics drive dangerously, which sometimes results in fatal accident. Not to mention, the rapid rise in petrol, the major fuel of great deal of vehicles, is hard to guess. It causes great number of people have a headache when they choose the way to join traffic. Although, to sump up, the fundamental benefits of traffic is far outweigh its drawbacks, we have to solve its trouble right now to make a perfect development of society.