if i may, dennis, satz28, and robert all have somethings correct. at least here in s.f. satz28 keeps mentioning "traffic cop". that is an important part of his posts. there are some cops that just love to give tickets and they become traffic cops. for the most part, here in s.f., a regular patrol cop will have their blinders on when it comes to traffic violations. there also is no quota but you can try to reach a goal. with goals may come incentives such as riding a new harley or something. and robert is correct about visual deterent. a traffic cop can target a specific intersection to deter traffic violators. maybe a fatal accident or other serious traffic collision had occured there. having a patrol car driving around is a deterent in itself. though i mentioned that most cops will have their blinders on, when there is a patrol car around, you wont comit a traffic violation until the cop is out of sight.
it is against the law to order or tell a cop to write tickets. the command staff can probably try and say "you have to write tickets" but they can do nothing to you if you dont or it can become legal issue. as far as the revenue, it does add revenue as does everything else that you have to pay for where city property or personel is invoved but i dont think it adds up to as much as the meter maids might pull in or things such as city lots and parking meters.
here in s.f. the cops are doing less and less because of the way they are being treated. anyone can make a complaint on a cop. the complaintant doesnt even have to be where the incident took place. the complaintant could have just saw he cop on tv or read about what he did in the newspaper and if the complaintant doesnt like what he saw, he can make a complaint and the police watchdog group will take that complaint. in s.f., the direction we are headed in the way cops are handling situations is not good and for a reason. again, if the cop does something, and the cop could be in the right and have done his job properly, and a citizen makes a big enough complaint, he can loose his job which means, he can loose he means of support for his family. there have been too many cases like this. cops become reactive instead of proactive. i dont blame any cop that just ignores most crime they see on the street, ie drug dealing, because their livelyhood is on the balance. they only go to calls that dispatch sends them on. i myself work as hard as the day i got in and everyone with my amount of years thinks im crazy but i just enjoy doing my job. i do think about slowing down because of my family and not being so proactive. my relatives all tell me to slow down but its just not me. my wife is understanding on what i do. she always wants to know why i have to run in a situation when most cops are runnng out. i can go on and on but it just gets upsetting and kinda long sorry for the change in topics.