How is suspense created in the signalman?

Suspense in "The Signalman" is created through a combination of eerie atmosphere, the protagonist's isolation, and the gradual revelation of supernatural elements. The story's setting—an isolated railway cutting—evokes a sense of foreboding, while the signalman's anxious demeanor builds tension. The repeated appearances of the mysterious figure and the signalman’s ominous premonitions intensify the uncertainty, keeping readers on edge about the impending disaster. This suspense ultimately culminates in a shocking climax that underscores the story's themes of fate and forewarning.