White lettering and symbols painted on the surface of the roadway are used to a. supplement signs b. identify hazards c. indicate police vehicles d. warn of road work

Option A, supplement signs, is the right answer.

Explanation:

The document which is used to particularize the standards by which traffic signs, road surface recognizing, and signals are created, fixed, and practiced, is known as the Manual on Uniform Traffic Control Devices. These specifications incorporate the colors, size, shapes and fonts applied in road markings and symbols.

With such signs, drivers can obtain more information about the roads they use. The information obtained plays a very significant role in making a journey best.

The 4 white lettering and symbols also provide real-time information about the road to the driver through which he can have a safe journey and avoid accidents.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.

chronological thinking is an indispensable tool to structure a historical narrative and to give meaning to a sequence of events. the final section presents the results of a survey to test the chronological thinking of lower secondary school students carried out by the educational research institute.