Budapest's Enduring "Marijuana Tram" Mystery Finally Solved: Industrial Hemp in Brake Pads Identified as the Source of Distinctive Odor on Historic Line 47

Budapest, Hungary - For years, commuters navigating the city's historic tram line 47 have been accustomed to a peculiar, cannabis-like scent permeating the vehicles, sparking widespread curiosity and various urban legends. An in-depth investigation conducted by the independent journalistic entity @hosszulepes.jarunk has now definitively unraveled this long-standing urban enigma, pinpointing the precise origin of the distinctive aroma: the tram's unique braking system. Initial public theories often revolved around the illicit use of substances or the application of industrial hemp oil as a lubricant in the tram's mechanical components. However, these speculations were systematically addressed and dismissed during the investigation. The Budapest Transport Company (BKV) had previously maintained a stance of unfamiliarity with the alleged marijuana scent, further deepening the mystery surrounding the phenomenon. The investigation meticulously ruled out common explanations by confirming that other tram lines, which utilize identical lubricants and maintenance protocols, do not exhibit this specific odor. The conclusive findings reveal that the older Ganz trams, specifically deployed on line 47, possess a distinct braking mechanism. When these trams engage their brakes, a significant amount of heat is generated due to friction. This thermal energy, in turn, causes industrial hemp materials embedded within the brake pads to release their natural, characteristic scent into the cabin and surrounding environment. While entirely harmless and devoid of any psychoactive properties, this natural hemp aroma is remarkably similar to that of marijuana, leading to the frequent misidentification by passengers. "It's a fascinating example of how mechanical processes can create an unexpected sensory experience that becomes an urban talking point," stated a representative from the investigative team. This comprehensive report provides a clear, scientifically backed explanation for a widespread public observation, effectively demystifying the "marijuana tram" and replacing speculation with verifiable facts.

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