Construction
Compare designs for the same soil, climate and traffic conditions.
Infrastructure costs
Compare the costs of two structures providing equivalent service, using a clearly defined scope and assumptions.
News · October 2026
Measure benefits at project level.
Compare the same service, traffic and time horizon. Owner costs, disruption to road users and environmental impacts should be assessed separately, then considered together without double counting. Potential savings and construction time will depend on actual project conditions; historical findings remain dated reference points.
Discuss a comparative assessmentBLC · 2026
An economic study tailored to your project.
Costs are compared at project level: excavation, materials, transport, placement, drainage, maintenance and construction constraints. September 2026 work distinguishes several soil and design contexts to support a project-specific analysis.
Operation
Separate maintenance, rehabilitation and residual value over the selected period.
Delivery
Document volumes, transport and scheduling with the project team.
BLC provides a project-specific economic study following an initial technical discussion. Supply prices, manufacturing costs, margins, licensing terms and detailed industrial assumptions are reviewed directly with the relevant parties under an agreed confidentiality framework.
Request a project assessmentBLC · 2026
Historical studies and project pricing.
The economic results from the 2020 InnovAct study shown below describe that report’s designs and assumptions. They establish neither current BLC prices nor licence pricing. Construction and life-cycle analyses are compared separately to avoid counting the same benefits twice.
Indirect costs to bring into the discussion.
01
Road-user time
Queues, detours and journey reliability: affected traffic × additional delay × the selected value of time.
02
Vehicle operation
Additional distance, fuel, wear and maintenance associated with detours or pavement condition.
03
Economic activity
Business access, deliveries, productivity and service continuity. Document local effects and avoid counting the same losses twice.
04
Safety and quality of life
Work-zone exposure, emergency access, noise, dust and congestion emissions. Distinguish measured effects from estimates.
The InnovAct economic reference case.
| Item | Conventional | BLHP |
|---|---|---|
| Initial construction | 778 354 $ | 882 083 $ |
| Discounted maintenance and rehabilitation | 162 872 $ | 54 232 $ |
| Residual value deducted | 79 685 $ | 141 623 $ |
| Discounted life-cycle cost | 861 541 $ | 794 691 $ |
The scenario shows an approximately 13.3% higher initial cost and 7.8% lower life-cycle cost. It uses a 30-year horizon, a 4% discount rate and a 3.75 m width in the cost table, excluding excavation. Width differences with the environmental analysis need harmonisation before a new comparison.
InnovAct · 2020 · Pavement study · French PDFPrepare a comparable estimate.
Set the required service
Traffic, service period, acceptable maintenance, safety and access.
Price both designs
Excavation, materials, transport, placement, drainage, quality, traffic management and contingencies.
Test assumptions
Variations in prices, schedules, maintenance and residual value.
Reference framework
BLC
Discuss your project