The need: moving beyond traditional road appraisal
Most public infrastructure projects in Entre Ríos municipalities and departments are still assessed through traditional cost-benefit criteria, such as individual fuel savings or shorter travel times.
That approach is limited. It overlooks the systemic impact and the value generated for adjacent productive sectors. A structural bottleneck, such as an obsolete bridge, works as a hidden logistics tax: it discourages private investment and slows regional development.
The product: an integrated impact measurement model
Arará developed an integrated modeling tool that redefines the evaluation of public works. Based on the technical analysis of the bridge project over Arroyo Curupí on Provincial Road No. 20, the model quantifies how public investment can directly improve private-sector profitability.
Geospatial identification
The model does not evaluate traffic in the abstract: it measures the impact on real productive units. It uses geographic information systems and technical criteria to define areas of direct influence along the corridor.
Inventory and valuation of existing stock
It quantifies the value-generation capacity already installed in the area of influence, identifying productive establishments by activity and scale to estimate the economic volume trapped by logistics deficiencies.
Incremental benefits by sector
In livestock, it estimates the surplus associated with fewer productive losses and better dispatch conditions. In poultry, it models productive uncertainty and how poor logistics discourages automated private investment.
Financial and economic viability
The model computes dollar-based indicators under bounded time horizons and prudent accounting assumptions, including gradual adoption curves and reference discount rates.
Value: turning public works into productive certainty
- Macroeconomic prioritization: ranks works according to their real capacity to generate economic dynamism and provincial value added.
- Risk mitigation: turns public works into a direct catalyst for private profitability by reducing structural logistics risk.
- Induced investment: quantifies pre-existing geographic disincentives and supports private capital location decisions.
- Loan self-financing: shows when a nodal investment can be repaid through the extra production it enables.
Replicability across Entre Ríos
The tool is not limited to bridges. It can evaluate any nodal infrastructure affecting productive corridors and territorial investment decisions.
- Rural crossings over streams and rivers that limit heavy-truck access.
- Access roads to slaughter or processing centers in highly integrated industries.
- Specific road corridors acting as barriers between production centers and markets.
Strengthening the next project
Technical measurement and strategic management help estimate productive returns, organize priorities and reduce uncertainty before investing.

