Click here for this month's Web extras:
From "Concrete paving, Colorado style"
From "Exit, lane left"
From "Design-build vs. CM/CG"
From "From glass to cash"
From "Work Truck Show wrap-up"
Click here for Web extras from the 2011 Public Works Manual
Cover Story: RoadWorks / Roadway design, construction & maintenance
From "CONCRETE PAVING, COLORADO STYLE"
A state DOT extends the life of its roads with thin whitetopping.
RoadWorks: Traffic control
From "EXIT, LANE LEFT"
How to decide if a displaced left-turn design is a good fit for your intersection.
Jimmy Carter Boulevard at Buford Highway CFI — Gwinnett County, Ga.
Gresham, Smith and Partners (GS&P) developed this continuous-flow intersection (CFI) for Georga DOT and the Gwinnett Village Community Improvement District. The project proposes to construct a two-legged displaced left turn on SR 13/US 23/Buford Highway at the intersection with SR 140/Jimmy Carter Boulevard. The design provides dual left-turn lanes, offset from the through-lanes on the east and west legs of SR 13/US 23/Buford Highway, so left-turn movements could occur simultaneously with the mainline through.
This solution reduces congestion and delays and improves safety for all modes for a fraction of the overall costs of other design alternatives.
SR 400/SR 53 displaced left-turn intersection — Snellville, Ga.
Gresham, Smith and Partners developed this traffic simulation of a displaced left-turn intersection (or continuous-flow intersection) at the SR 400 and SR 53 intersection for Georgia DOT. The intersection design relocates left turns several hundred feet prior to the main intersection. Through the use of signal timing, turn-lane placement, and access control, capacity can be significantly increased at an intersection. The cost of this type of intersection is approximately 80% to 90% less than a grade-separated interchange, and provides approximately 75% of the capacity of a grade-separated interchange.
RoadWorks: Administration & management
From "DESIGN-BUILD VS. CM/GG"
A Utah DOT manager explains how a combined highway, transit, and trail system was completed for 27% less than estimated.
To access UDOT's project reports, which are conducted at the end of design and at the end of construction for all CM/GC projects, visit here.
Out of the Ordinary
From "FROM CLASS TO CASH"
A Southeastern solid waste department doubles revenue by recycling glass into mulch, road salt.
Watch these videos to learn how Andela Products Co.'s glass recycling systems work and the end-products they create.
From "WORK TRUCK SHOW WRAP-UP"
Fleet columnist Paul Abelson reviews new vehicle introductions at the National Truck Equipment Association's The Work Truck Show.