Traffic forecasting drops step-by-step sampling: CoReFlow emits a full forecast in one pass and wins 11 of 12 point-metric cases across four road networks
Probabilistic traffic forecasting has relied on multi-step diffusion sampling, which is slow and often trails deterministic baselines on point accuracy. CoReFlow learns the flow map, the solution operator of the probability-flow ODE, directly and relaxes trajectory consistency through the conditional mean, so a single forward pass produces the full forecast. On four real road-network datasets, PEMS03, PEMS04, PEMS07 and PEMS08, it ranks first in 11 of 12 deterministic metric cases and takes all 14 reported comparisons against generative baselines on PEMS07 and PEMS08.