INNOVATION IN ROADS
West Des Moines is a rapidly growing suburb to Iowa’s state capital. The
Cascade Avenue project, which borders the new headquarters for the world’s
fifth-largest insurance group,was partially funded by the state program called
Reinvesting in Iowa’s Sound Economy. The road project consists of a half
mile of new construction that will transition from a five-lane roadway with a
continuous left-turn lane to a four-lane divided roadway with dual left turns.
MicroStation and GEOPAK developed a 3D model of the corridor for contractors
to use in pre-bid estimating and during construction with machine-control
grading and earthmoving equipment. This helped produce a lower bid, minimize
change orders, and decrease the construction schedule for an estimated 25
percent cost savings on construction.
West Broad Street
Columbus, Ohio, United States
LJB prepared a safety study and preliminary engineering plans for a 3.2-mile
section of U.S. Route 40 near the Interstate 270 interchange in Franklin County,
which has one of the highest accident rates in Ohio. The study analyzed more
than 1, 200 crashes from a three-year period. Traveled by nearly 40,000 vehicles
per day, the five-lane corridor required $20 million in improvements, including
traffic signal modifications and phasing, and access controls.
LJB developed phased construction plans to widen/replace pavement and
replace the antiquated closed drainage system. Using 3D laser scanning to
collect point cloud survey data, LJB assembled the data into a 3D site map
with Bentley Cloud Worx and deployed MicroStation VBA to import data into
GEOPAK, which eliminated human error. The products seamlessly integrated
the design process.