Final answer:
Alfred should use a climatology map or precipitation map, and may find GIS maps helpful, to assess typical rainfall in the area of the planned road construction project to anticipate and mitigate flooding.
Step-by-step explanation:
Alfred, who works in city government and is involved in planning a major road construction project, would most likely consult a climatology map to determine the typical rainfall in the target area.
A climatology map or a precipitation map would provide historical data on average rainfall, helping to anticipate and mitigate potential flooding issues that would affect road construction and maintenance.
Climatic maps are special type of maps which we use to represent the climatic regions of a geographical territory.
The usage of climatic maps are : 1) For references in the weather office. 2) For geographical surveys.
Geographical Information System (GIS) maps could also be beneficial in this scenario, as they combine topographic and climate data to offer a more comprehensive analysis of environmental conditions, which is essential in transportation planning.