 The WTOP Traffic Center. Tracking the top trouble spots. The biggest backups. The major incidents. The slowest traffic. WTOP Traffic. Every 10 minutes. On the 8th. And when it breaks. This is WTOP. Washington's news, traffic, and weather station. WTOP-FM Washington. WWW-TFM Manassas. WTLP-FM Braddock Heights Frederick. Just the way you look.