What are the advantages and disadvantages of architectural survey, road survey and bridge survey?

Wages are similar, mainly depending on the region or enterprise. Among the three engineering surveys you mentioned, the technical content of bridge survey is the highest, and you have learned the most. The technical requirements of building construction survey are not high, and there is basically no total station, so there is no technology at all. Any industry has a bright future, but whether you like this profession or not.

In the meantime, let me give you a suggestion. These three kinds of engineering survey are not the main business in the construction unit, but all auxiliary work. They are not motivated and have no sense of accomplishment, so they are bored to work.

Suggestion: If you are a surveying and mapping major, you might as well go to some professional surveying and mapping units for employment, where you will be treated equally, depending on your personal level and business level.