A—School Zone B—Vendors Prohibited
C—Pass on Left D—Don"t Step On
E—Keep Away for Safety F—Service Area
G—Administrative Area H—Watch Your Hand
I—Please Don"t Leave Valuables Unattended J—Maintenance in Progress
K—Out of Service L—Stand on Right
M—Break Glass in Emergency N—Don"t Touch
O—Keep Clear of the Door P—Don"t Exceed Speed Limit
Q—Icy Road ______严禁超速 ______正在检修