• HNTB Corporation

    Firm-wide Design-build Quality Plan

    Alexandria, Virginia, United States

Project Summary

HNTB’s TrueViz Q-Assist plan develops protocols to align quality procedures with the aggressive schedules and 3D deliverables associated with alternative delivery projects. These procedures make data from multiple sources available for review by staff at multiple locations and capture results in a managed environment. HNTB has standardized this quality plan on an integrated software platform.

TrueViz Q-Assist uses MicroStation to display data sourced from all applications, including Bentley products, internal applications, and third-party applications. ProjectWise serves as the central data store for the company’s 60+ offices. ProjectWise Dynamic Plot reduces review cycle times and ensures mark-ups are captured in a managed environment. Bentley Navigator is used with i-models for mark-up checking and conflict resolution, as well as to develop the 4D construction phasing plan.

HNTB has used pilot projects to test the quality plan processes and procedures. During the Virginia Department of Transportation’s USD 600 million 95 Express Lanes project, where HNTB was the lead designer on three of the four sections covering 20 miles and USD 400 million of construction, a pilot test of several TrueViz Q-Assist procedures and tools detected more than 500 potential conflicts on the first run. This saved about USD 100,000 on a single resolution.


Bentley products are used to integrate the quality process into day-to-day activities rather than a parallel process. This allows the design team to quickly evaluate and develop better design options, identify potential issues, respond and track changes in a managed environment, and offer remote access to subject matter experts. The TrueViz Q-Assist plan allows HNTB to spend more time innovating better solutions and reducing risk associated with finding major conflicts later.

  • The quality plan allows HNTB to supplement a visual review of plans, identify location and severity of potential conflicts, and note potential conflicts to the contractor in plan production.
  • ProjectWise has helped standardize project setup and delivery protocols, which reduces startup time.