How tardy is the B30 usually?

I am looking at arriving into BWI on a Friday afternoon, around 2.30pm.

I figure that I can catch the 3pm bus from BWI Stop 2, which will supposedly take me to the Geenbelt station by 3.32pm. Has anyone taken this bus before? Does it usually pickup at BWI late and arrive to Green Belt late? Is the bus usually packed full?

Also, does the Bus accept cash fare? Or do I need an electronic fare card? Can you buy fare cards from BWI?

The bus is usually within 5 min of schedule on both ends, except once
I was counting on it and it didn't show at all. $3 exact change - dollar
bills, change, or smart card. I have always been able to get a seat.

At 3pm the bw parkway is not that busy. If they have a problem on the pky(tree trimming???), then schedule is blown.

I do not ride the bus, but it passes me frequently, and I have never seen standees, or many on the thing at all. the bus really rolls, as it has to average over 60mph on the open stretch to maintain schedule.

I took it once from Greenbelt to BWI. It was prompt and not crowded. Not a bad ride at all.

I've taken it even during rush hour and it was surprisingly close to on time. I always gotten a seat too.