Bruchim ha-baim. Literally the Hebrew means "Blessed are those who come."
But if you are in the other lane, leaving Jerusalem, you will see the other blessing:
Tsetchem leshalom, "Go toward peace."
North Americans, tonight you can see a PBS special on TV called "Jerusalem: Center of the World"!
From their website (where you can also check the broadcast time for your city):
"Host Ray Suarez of The NewsHour With Jim Lehrer, together with an outstanding roster of scholars, explores the founding of the city, and the birth and convergence of the world's three major monotheistic religions. He lends voice to the key events in the city's history as described in the Hebrew and Christian Bibles, the Talmud, the Hagaddah, the Koran, and the Hadith."