Carlos Rosenberger

Initial costs include all costs incurred in construction or reconstruction of an asphalt pavement. Carlos Rosenberger of the Asphalt Institute, Dillsburg, Pa., explains that this includes site preparation, subgrade work, subbase and pavement placement, and, in reconstruction, user delay costs. Initial costs depend, in part, on the availability of materials in the project area, according to Hensley. He adds that in comparing initial costs for various pavement types, the results are usually equal and show no significant differences.

Initial costs include all costs incurred in construction or reconstruction of an asphalt pavement. Carlos Rosenberger of the Asphalt Institute, Dillsburg, Pa., explains that this includes site preparation, subgrade work, subbase and pavement placement, and, in reconstruction, user delay costs. Initial costs depend, in part, on the availability of materials in the project area, according to Hensley. He adds that in comparing initial costs for various pavement types, the results are usually equal and show no significant differences.Rehabilitation costs, on the other hand, do tend to vary significantly by pavement type, according to research. These costs involve what some industry experts consider major maintenance work, such as an overlay. User delays are considered part of rehabilitation costs because they are not a factor in new construction, when no users are on the route yet.By combining initial construction, rehabilitation and maintenance costs, and by factoring in discount rates for the years of construction, researchers can analyze the total cost of a pavement. Those who have done so say asphalt pavements continue to yield solid results. This comes as good news to savvy contractors who are out there lobbying their DOTs to incorporate more asphalt projects into state bids.

Rehabilitation, maintenance costs stay lowIf properly maintained, asphalt pavements can have long service lives. This is a key factor contractors can present to state DOT officials. "Over the long run," says Hensley, "we can go in and do surface restoration, and we can build asphalt pavements that will last 30 to 40 years with no major rehab." Hensley explains that major rehabilitation work on such roadways usually involves adding a lane or straightening curves. "It usually doesn't have to do with the structural value of the road," he says.

Carlos Rosenberger of the Asphalt Institute, Dillsburg, Pa., explains that this includes site preparation, subgrade work, subbase and pavement placement, and, in reconstruction, user delay costs.
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A portion of rehabilitation costs has to do with user delays, which Rosenberger defines as costs to the motoring public due to lost time and vehicle expenses.Researchers calculate user delay costs by first assigning an amount to each type of a vehicle - $12.27 per hour for passenger cars, for instance.Average daily traffic (ADT) rates and the length of the delay are also factors."Obviously, as the number of vehicles increases, user delay becomes more critical," says Rosenberger.

Carlos Rosenberger of the Asphalt Institute, Dillsburg, Pa., explains that this includes site preparation, subgrade work, subbase and pavement placement, and, in reconstruction, user delay costs.
...
A portion of rehabilitation costs has to do with user delays, which Rosenberger defines as costs to the motoring public due to lost time and vehicle expenses.Researchers calculate user delay costs by first assigning an amount to each type of a vehicle - $12.27 per hour for passenger cars, for instance.Average daily traffic (ADT) rates and the length of the delay are also factors."Obviously, as the number of vehicles increases, user delay becomes more critical," says Rosenberger."In some cases, user delay costs will be the controlling factor."According to an Asphalt Pavement Alliance (APA) report, on a busy Interstate highway, traffic delays from a single construction project can cost a local economy more than $2 million per day.

Carlos Rosenberger of the Asphalt Institute, Dillsburg, Pa., explains that this includes site preparation, subgrade work, subbase and pavement placement, and, in reconstruction, user delay costs.
...
A portion of rehabilitation costs has to do with user delays, which Rosenberger defines as costs to the motoring public due to lost time and vehicle expenses.Researchers calculate user delay costs by first assigning an amount to each type of a vehicle - $12.27 per hour for passenger cars, for instance.Average daily traffic (ADT) rates and the length of the delay are also factors."Obviously, as the number of vehicles increases, user delay becomes more critical," says Rosenberger."In some cases, user delay costs will be the controlling factor."According to an Asphalt Pavement Alliance (APA) report, on a busy Interstate highway, traffic delays from a single construction project can cost a local economy more than $2 million per day.However, user delays only become a factor when they lead to a traffic que, according to Ohio's Frecker.

Carlos RosenbergerSr. Regional Engineer

Carlos Rosenberger, Asphalt Institute
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Carlos Rosenberger, Asphalt Institute

Carlos RosenbergerAsphalt InstitutePO Box 337Dillsburg, PA 17019-0337T: (707) 432-5965F: (717) 432-5965

Carlos Rosenberger, P.E.

Carlos Rosenberger, District Engineer for The Asphalt Institute, visited the Rt. 40/213 intersection in the Fall of 2004 (11 years after the project was constructed) and reported: "No maintenance had been performed (since the project's completion), not an overlay, no crack sealing and no patching related to the initial construction.