this module multiple chainage cross-sections may be imported from various
file formats or entered manually. A long-section could be loaded or
extracted from the cross-sections. Only one section profile can be
viewed at any one time.
Up to 8 cross-section and
long-section profile groups may be loaded. Any one or all of these groups may
then be plotted. Earthworks volume calculations may be done between any
two groups. This module is also required with Module 3 if one would like
to balance the Cut and Fill Volumes over a length of road.
module provides the user with user-friendly and very flexible road
design functions. The vertical alignment design may be done directly on
screen or it may be entered from external design results. It allows for
non-symmetrical vertical curves and the checking of design limits. The
cross-sectional profile is defined using the most advanced techniques in
manipulating individual components independent from others for example
:- road width and batter slope changes. An extensive verge design
function supplements the basic design profile. Variable drains, batter
parameters and topsoil stripping may be specified. Calculation results
include volume calculations for mass-earthworks, foundation layers,
layers on shoulders, setting-out data and conversion of the final
profile to DTM format. NEW: It is now also
possible to import a DTM of the original ground surface as well as a
network of road alignment strings (Module 1,2 & 11 from model maker is
required) and graphically design a network of roads at the same time.
All intersection levels are recorded and used by the vertical alignment
for each road. This process eliminates allot of the user error when
designing road crossings and intersections.
The offsets and elevations
forming the ground cross section profile at each peg distance may be edited on
the graphic screen. This may typically be used to create a
rehabilitation profile for quarries or mine dumps or for the definition
of a benching profile in road cuttings.
Two single carriageway profiles may be defined independently with an offset between each other to define a dual carriageway road. All the functions for a single carriageway are used and each carriageway may have it's own vertical alignment. Cross-section drawings will show both carriageways. This module can also be successfully used to design complex parking areas next to single carriageways.
After the calculation of mass earthworks volumes the result may be used to plot a mass haul diagram. The diagram is plotted in the form of a long section with user definable vertical and horizontal scales. Additional borrow and spoil values can also be applied and compaction and bulking is also carted for.
The horizontal and vertical alignment design is used to determine various design criteria. This module has 3 components - Calculate the RISE/FALL and curvature factors as required by HDM (Highway design and maintenance) document for the construction of main roads. Calculate horizontal and vertical alignment sight distances in both directions along the road. Calculate the 85 percentile speed profile in both directions to determine climbing lanes.