Typical highway construction plans are made up of several individual components.
The paragraphs that follow will present a brief discussion of various types of plan
sheets that make up a set. Except for major projects, seldom will all of the components
be required in a plan. However, when required, they are usually placed in the
order discussed.
The title sheet is the first in the set and contains a brief description of the project
and indication of its length. It displays the title of the project in large, bold letters. It
lists the specifications under which the project is to be built, states whether traffic is to
be maintained or detoured, gives an index of all plan sheets, lists standard construction
drawings and supplemental specifications, and contains the signatures of approval by
the appropriate officials. See Fig. 2.74 for an example.
The schematic plan shows the geometric location of proposed roadway segments in
relation to existing roadway segments and other major topographic features (rivers,
streams, railroads, high-voltage lines, pipelines, etc.). See Fig. 2.75 for an example.
The typical sections sheet is a dimensioned cross-sectional view of how the roadway
will appear after construction is completed. These sheets generally show lane
widths, shoulder widths, pavement buildup, ditch design, foreslope and backslope recommendations,
and tie-ins to existing ground lines. Each section is accompanied by a
set or sets of station limits identifying to which portion of the roadway it applies. See
Fig. 2.76 for an example.
The general notes sheets contain plan notes to clarify construction items that are
not satisfactorily covered by the specifications or plan details. They may be used to
modify standard construction drawings.
The maintenance of traffic sheets may include plan view sheets showing location
of temporary roads, temporary pavement widening, or detour routes, as well as sheets
providing specific notes and instructions regarding sequential construction phases.
Details included may be transverse sections showing relationships between the maintenance
roadway and the construction area, as well as placement of channelizing devices
and lateral construction limits.