At that intersection, the side road tees into the main road at slightly sharper than a right angle; 60 or 70 degrees maybe. Not sharp enough that you notice anything unusual coming into it, but once you’re in it you have to turn pretty hard. Also the side road slopes downhill, having just come over the train line, so you find yourself going a bit faster than you mean to as you enter that intersection. At a certain time of day, the sun’s angle beams right into the intersection, bathing it in dazzling sunlight. If you happen to be sitting at the red light facing northbound on the main road at the right time of day, you get this succession of brilliantly-illuminated tableaux of people’s face, surprised by the sharper-than-expected turn and sudden sun in their face, going too fast, flipping down their sun visors, and hanging on against the centrifugal force as they turn sharply. Or is it centripetal force? I can never get those straight.