Overview of the Report
The document titled “Ex post samfundsøkonomisk analyse af supercykelstierne” is a public report produced by Impact Economics. It presents a post‑implementation economic evaluation of Denmark’s newly built super‑bike lane network, covering 16 routes and a total length of 244 km.
Purpose and Scope
The study assesses the societal cost‑benefit balance of the supercykelstier (high‑quality cycling infrastructure). Its primary aim is to quantify net economic benefits, return on investment, and the distribution of costs and gains among municipalities and the state.
Key Economic Findings
- Net benefit: DKK 6 billion.
- Internal rate of return: 17 % across the entire network.
- Municipalities bear the upfront construction and maintenance costs, while the central government captures the majority of the economic gains through increased productivity, health savings, and reduced traffic congestion.
Infrastructure Details
The evaluated network consists of 16 distinct routes, collectively extending 244 km. These routes were designed to meet high standards for safety, speed, and connectivity, aiming to encourage a shift from car travel to cycling for both commuting and leisure.
Urban and Regional Impact
The analysis highlights substantial benefits for urban areas, including reduced traffic congestion, lower air‑pollution levels, and improved public health outcomes. Rural segments also show positive effects, primarily through enhanced accessibility and tourism opportunities.
Financial Distribution
Cost responsibility lies predominantly with local municipalities, which financed the construction and ongoing upkeep. The state benefits from increased tax revenues and savings in healthcare and environmental mitigation, reflecting a favorable fiscal asymmetry.
Environmental and Health Outcomes
- Estimated reduction in CO₂ emissions: significant, though exact figures are not disclosed in the summary.
- Health cost savings: notable, derived from increased physical activity and lower accident rates.
Methodology
Impact Economics employed a standard post‑implementation cost‑benefit analysis, incorporating traffic counts, modal shift estimates, health impact assessments, and valuation of time savings. The study references baseline data collected before the lanes’ opening and compares it with observed outcomes.
Contextual Background
Impact Economics is a recognized consultancy specializing in transport economics and policy evaluation. The report contributes to a broader European discourse on sustainable mobility, aligning with EU objectives to promote active transport and reduce carbon footprints in urban planning.
Publication Details
The report is publicly accessible and was submitted to the relevant database on 16 October 2026. It is categorized under “Report / Study” and is marked as not AI‑generated. The submission includes a direct link to the full document for readers seeking detailed tables and appendices.