Abstract: In a routing system where a router interconnects circuit components with conduction paths, a crosstalk analyzer is employed to audit the electrical crosstalk incurred in coupled path segments during the interconnection. The resulting crosstalk measures are compared with one or more acceptable crosstalk limits. If the measures exceed any limits, the unsatisfactory condition is fed back to the router, along with information on suggested re-arrangements of the segments. In response to this feedback, the router modifies the routed interconnections to reduce the crosstalk level.