Crystallization (Unabridged‪)‬

This is the ultimate traffic nightmare - city-wide gridlock! In this savagely satirical view of the near future, vehicular traffic in Los Angeles finally loses its liquidity, transforming into slow-moving slush, then finally hardening into sun-baked mud. With cars and trucks and buses paralyzed across 100 miles of freeway parking lot, the city grinds to a painful stop - or does it? 

Plus, a bonus story: "Afternoon with a Dead Bus" - a bizarre urban fantasy that only Hugo and Nebula Award winner David Gerrold could write.