On the failure to pay traffic tickets (like speeding) you cannot go to jail for failing to appear. Eventually, a judgement can be taken against you and DMV will suspend your driver's license. On the driving on a suspended license charges, those may be misdemeanors, if the judge feels that you have violated your probation she/he could violate you and potentially give you some jail time. If, however, the only issue is not paying your fines, and you can demonstrate that you have the inability to pay, you may be allowed to substitute community service (and sometimes, custody time) in lieu of the fines. But there are mandatory fees imposed for which this will not apply, and you are ultimately going to have to pay.
Answered on Mar 01st, 2013 at 8:34 PM