Airport Infrastructure Finance & Economics Vocabulary

A complete set of vocabulary flashcards covering multilateral standards, Indian civil aviation regulatory frameworks, CAPEX/OPEX metrics, till mechanisms, and project finance ratios from the lecture notes.

ICAO Doc 9082

International Civil Aviation Organization policies setting four core principles for aeronautical charges: Cost-Reflectivity, Non-Discrimination, Transparency, and Meaningful User Consultation.

ICAO Doc 9562

The Airport Economics Manual, which provides analytical toolkits for financial modeling, cost allocation, balance sheet management, capital budgeting, and organizational management structures.

Major Airport (AERA Act 2008)

An airport designated under Indian statutory regulation as having an annual passenger throughput exceeding $3.5\text{ million}$ passengers per annum (mppa).

Airports Economic Regulatory Authority of India (AERA)

A statutory body established under the AERA Act 2008 that regulates tariffs, passenger service fees, and user development fees for Major Airports in India using multi-year tariff orders.

Single Till Mechanism

A regulatory framework where $100\%$ of non-aeronautical profits cross-subsidize aeronautical costs, resulting in tariffs set to cover net system costs only.

Dual Till Mechanism

A regulatory framework where aeronautical and commercial operations are insulated from each other, allowing commercial profits to be $100\%$ retained by the airport operator.

Shared / Hybrid Till Mechanism

The regulatory standard mandated under India's NCAP 2016 where $30\%$ of gross non-aeronautical revenue cross-subsidizes the aeronautical Aggregate Revenue Requirement (ARR), while the remaining $70\%$ is retained by the concessionaire.

Aggregate Revenue Requirement (ARR)

The total target aeronautical revenue permitted by AERA for a control period, calculated as $ARR_t = (RAB_t \times WACC) + D_t + O_t + T_t - S_t$.

Regulatory Asset Base (RAB)

The average net book value of aeronautical assets used to calculate regulatory return on capital, calculated as $RAB_t = RAB_{t-1} + CAPEX_t - D_t - \text{Disposal}_t$ (excluding Work-in-Progress until physically commissioned).

Peak Hour Passengers (PHP)

A terminal capacity design metric calculated as $PHP = \frac{\text{Annual Passengers} \times \text{Peak Month Ratio} \times \text{Average Daily Ratio in Peak Month} \times \text{Peak Hour Factor}}{100}$.

Aviation Security Fee (ASF)

A statutory fee collected from departing passengers and held in a dedicated escrow account administered by the National Civil Aviation Security Fund trust to fund Central Industrial Security Force (CISF) costs, kept outside the operator's profit and loss account.

Spend Per Passenger (SPP)

A commercial performance metric defined as $\text{SPP} = \frac{\text{Total Concession Sales}}{\text{Total Enplaned Passengers}}$.

Concession Value Per Passenger (Yield)

A non-aeronautical revenue yield metric defined as $\text{Yield} = \frac{\text{Total Concession Sales} \times \text{Concession Royalty \%}}{\text{Total PAX}}$.

Sales Density

A commercial productivity metric defined as $\text{Sales Density} = \frac{\text{Total Gross Concession Sales}}{\text{Leasable Commercial Area (m}^2\text{)}}$.

Cash Flow Available for Debt Service (CFADS)

An operational cash flow metric calculated as $CFADS = EBITDA - \text{Taxes} - \text{Mandatory Maintenance CAPEX} - \Delta \text{Working Capital}$.

Debt Service Coverage Ratio (DSCR)

A project finance covenant ratio calculated as $DSCR_t = \frac{CFADS_t}{\text{Principal Repayment}_t + \text{Interest Expense}_t}$, with typical minimum required thresholds of $1.20\text{x}$ to $1.35\text{x}$.

Loan Life Coverage Ratio (LLCR)

A project finance ratio defined as $LLCR_t = \frac{NPV(\text{CFADS from period } t \text{ to End of Debt, Discounted at } K_d)}{\text{Total Outstanding Debt}_t}$.

Project Life Coverage Ratio (PLCR)

A long-term credit risk ratio defined as $PLCR_t = \frac{NPV(\text{CFADS from period } t \text{ to End of Concession, Discounted at } WACC)}{\text{Total Outstanding Debt}_t}$.

Debt Service Reserve Account (DSRA)

A project finance liquidity covenant requiring the borrower to maintain $3$ to $6\text{ months}$ of upcoming debt service obligations in cash or bank guarantees.

Cost of Equity ($K_e$)

The required return on equity calculated under CAPM as $K_e = R_f + \beta_e \times (ERP)$, where $R_f$ is the 10-year Government of India bond yield and $ERP$ is the Equity Risk Premium.

Special Airport Systems (SAS)

Core specialized technological assets including Baggage Handling Systems (BHS), Passenger Boarding Bridges (PBB), Visual Docking Guidance Systems (VDGS), CUTE/CUSS/CUPPS, and A-CDM, representing $15\%$ to $22\%$ of basic terminal civil/structural building CAPEX.

Article 15 of the Chicago Convention

An international civil aviation treaty provision mandating uniform, non-discriminatory application of airport landing and departure charges to both foreign and domestic aircraft.

Asset Beta

A financial parameter representing the systematic business and operational market risk of the airport enterprise in the absence of debt financing.