You may think that a timely arrival is not a big deal, but it is. Many people have not gotten a job merely because they were late. If you think about it, there are so many applicants for jobs out there, timliness is an easy way to rule someone out.
Not only should you arrive on time for an interview, but you should try to arrive 15 minutes early. Barring a major disaster, a late arrival will probably lose the job for you.
Perform a little research on the evening before the interview to ensure that you have the right address and a reliable route to the meeting place. Linger in your car or a coffee shop if you arrive more than 15 minutes before the meeting time. By arriving too early, you become a burden.