The Virginia Department of Transportation (VDOT) has released a report that addresses Virginia’s standards and exemption processes for commercial entrance spacing. This report also observes the extent to which commercial access exceptions are used in Virginia, and the impact on crashes at these sites. The previous VDOT Road Design Manual details requirements that new commercial entrances meet certain minimum spacing standards, though landowners may request exemptions.

The Louisiana Department of Transportation and Development has released a report that analyzes the design and characterization of asphalt mixtures used in road pavements. This report identifies the compaction and performance characteristics of crushed aggregate mixtures and considers specific attributes of asphalt, including Superpave.

The Virginia Department of Transportation has released a report that describes the bridge virtual assembly system (VAS) processes in detail and compares them to conventional measurement methods. The VAS method replaces conventional match-drilling with virtual assembly methods, creating custom-designed splice plates.

The Pennsylvania Department of Transportation has released a report that evaluates the performance and cost analysis of four deicer products through parking lot tests and on-road tests. This research builds upon previous laboratory studies of these products to determine real-world scenarios based on environmental and traffic conditions.

The Missouri Department of Transportation has released a report that evaluates various methods for predicting the installed length, assessing the condition, and predicting the load capacity of existing bridge foundations. Reusing existing foundations for the replacement bridge is an appealing approach, since this can reduce construction costs and shorten project schedules. However, there are engineering challenges to foundation reuse, which this report seeks to address.

The Louisiana Department of Transportation and Development has released a report that evaluates jointed plain concrete pavement (JPCP) performance with relation to dowel bar alignment. Dowel bars are the current preferred method for providing load transfer for JPCP, but for proper load transfer to occur, the dowels must be placed properly.

The Louisiana Department of Transportation and Development has released a report that investigates the existing state of practice across the nation for placing safety campaign messages on dynamic message signs (DMS). This report also identifies the effectiveness of DMS in influencing driver behavior and providing a public safety benefit.

The Virginia Department of Transportation has released a report that analyzes various repair techniques for bridge beams. This report evaluates strand splices, fiber-reinforced polymer, fabric-reinforced cementitious matrix (FRCM), and a combination of FRCM and strand splices.

The Virginia Department of Transportation has released a report that assesses certain materials used to reduce the detrimental effects of cracks in reinforced concrete bridge decks. This report tested two materials: crack sealant and corrosion-resistant reinforcement.

The Minnesota Department of Transportation has released a report that evaluates several nontraditional “bio-based” fog sealants applied to bituminous shoulder sections in Minnesota. The pavement engineering community has recently been introduced to nontraditional products to use as surface sealers for bituminous pavements, and many of these products use agricultural-based components.