The issue focused on revenue collected through transportation infrastructure investments by highway departments that vary greatly across states. Transportation financing districts often finance highways or bridges as long as their obligations remain aligned with revenues generated from tolls and fees. Because state legislatures typically defer payments for decades, governments tend to allocate funds toward roads based on projected maintenance costs rather than paying upfront for upkeep. However, spending habits shift rapidly once bond issuances expire and debts begin to accumulate. Debt issuance spikes during periods of inflation or downturns in economic activity. Thus