Hi,
Don't know if this helps, but I have on /off times with traffic lights. Sometimes, on bad days, I feel so trapped at a light that I start to panic. Some intersections are worse than others, for some reason.
But, on good days, I find that some things that help me are:
-Working on calming techniques (breathing, thinking about things I like)
-Distracting myself (i.e. I take the time to clean out something in my car or purse - don't worry, I know when the light changes :-) )
-Looking at areas around the light / intersection (such as pretty trees, or interesting signs).
Before I know it, the light changes and I'm on my way. I try to stay focused and calm and force myself to remember that "it wasn't such a big deal", so that I'll feel better next time.
These are just some ways that I try and be calmer - what works for you?