The introduction of E-ZPass was initially framed as a solution to a very human problem: the frustration of idling in traffic at toll booths. By allowing vehicles to pay fees via radio frequency identification (RFID) tags without stopping, the system promised—and delivered—increased efficiency and reduced carbon emissions. However, as the IELTS passage suggests, this technology was merely the "thin end of the wedge." What began as a tool for commuters has evolved into a sophisticated infrastructure for data collection and urban management.

2. The "Environmental" Nuance

  1. While the text mentions the high cost of manual toll collection, it specifically cites toll-takers and plaza maintenance rather than security guards.

    Watch for comparison language:

    Words like “however,” “by contrast,” “similarly,” and “for example” signal how the writer connects E-ZPass to broader ideas.

    Technological Shift

    : The text details how tolling agencies use a combination of transponders, cameras, and networked computers to charge drivers automatically.