Modern highways are no longer designed only as layers of pavement, drainage, signs, barriers, and lighting. A new generation of infrastructure is emerging in which the physical road works together
Introduction Every successful road, highway, airport runway, or pavement begins with one critical question: Can the ground safely support the expected traffic load? If the answer is uncertain, even the
Modern roads do much more than carry vehicles. Beneath and beside them lies a complex network of water mains, sewer lines, electrical cables, telecommunications ducts, gas pipelines, drainage systems, and
A well-designed road must do more than carry traffic safely and efficiently. It must also control, collect, convey, and discharge water before that water damages the pavement, weakens the subgrade,
A culvert may look like a relatively small component of a highway, but its location can determine how well an entire drainage system performs. A poorly positioned culvert can create
A bridge may be structurally sound, yet drivers can still experience a noticeable bump at its entrance. In many cases, the problem does not originate in the main bridge structure.
Road widening is more than simply adding asphalt to the edge of an existing pavement. A successful Road Widening Design must integrate the existing highway with the proposed carriageway while
Modern highway projects generate enormous amounts of engineering information. Survey data, terrain models, horizontal and vertical alignments, drainage, pavement layers, structures, utilities, quantities, construction schedules, inspection records, and maintenance data
Corridor design becomes far more powerful when a road is treated as a coordinated three-dimensional system rather than a collection of independent plan, profile, and cross-section drawings. Corridor Modeling brings
Introduction Modern civil engineering projects depend on accurate information about the ground before a road, bridge, drainage system, railway, building, or earthwork operation is designed. A few incorrect elevation points
