Rebekah - Motorway Bridge Relief

I'm trying to cross a busy road and I'm not having a great deal of luck. The frustration and sound of vehicles whizzing by is making tense and nervous and that's not good when a girl needs to pee. I find a footbridge to cross the road and it looks as if I am quite well sheltered from the passing cars beneath. You know the rest, I pull my panties to the side and let is flow - what relief!