As per the Department of Transportation, they are 10 feet long with a gap of 20 feet inbetween.
Thin lines for outlining Thick lines for dimension Thin dotted lines Thin dotted lines Thin long chains for center lines
Each line time is used to show different things. Some of the lines are, Center lines( long- and short-dashed lines.)cutting plane lines( thin, medium-dashed lines, or thick long- and double short-dashed) and section lines(thin lines in a pattern).
Hi The different types of Alphabet of lines are:-Visible.-cutting plane lines.-Short breaking lines.-Border lines.-Invisible lines .-Ditto or hidden lines.-Center lines.-Long break lines.-Section lines.-Dimension lines
Roads that run north to south are typically referred to as "north-south roads" or "vertical roads."
what is the framework of roads water and gas pipes
Roads are an example of intersecting lines in the real world.
roads
1952
Infrastructure
The purpose of hidden lines is to represent edges that are not directly visible. The purpose of center lines is to represent the axes of circular features.
The drafting symbol for a center line is typically represented by a long dashed line with alternating long and short dashes. The long dashes are usually twice the length of the short dashes, and the line often has a specific width to distinguish it from other types of lines. Center lines are used to indicate the axis of symmetry for objects and to help in the layout of components in technical drawings.
Since most of this was done a long time ago, I think you will find that (rivers, mountains, trails or roads and possibly timber lines) were frequently used.