Each stage comes from a different public source and a different scope, so the Index never sums them into one number.
Awarded is a gross figure over the last twelve complete months: it counts renewals and extensions of existing contracts, and it counts single awards of $500M or more. The Concrete Index above and the “Briefing” both hold those out to read fresh demand, so their figures run lower than this one.
Public construction has two sides. The supply side, contractors and their bonds and backlogs, is tracked closely. The demand side, every dollar the City budgets, solicits, and awards, sits in the public record but is rarely read, because reading it means pulling thousands of notices and totaling them by hand.
The Concrete Index does that reading continuously. It pulls every construction award, solicitation, and capital commitment the City and State publish, totals them on the spot, and follows the same dollar from budget to award to payment. The result is a live, contractor-attributed view of where New York's public construction demand is forming, which agencies are moving it, and how fast it turns into cash.