The ornamental design for a trafficcontrolcabinet, as shown and described.
FIG. 1 is a front view of a traffic control cabinet showing our new design;
FIG. 2 is a right side perspective view thereof;
FIG. 3 is a second right side perspective view thereof; and,
FIG. 4 is a front perspective view thereof.
The broken line showing of handles, vents, a front plate, and internal structures is included for the purposes of illustrating portions of the “article” and form no part of the claimed design.