As autonomous vehicle technology becomes more common around the country, Boston is struggling to determine how driverless cars could fit in on the city’s congested and confusing streets — if it allows them at all.

The City Council postponed a vote Wednesday on an ordinance that would ban commercial autonomous vehicles, which carry passengers similarly to taxis or ride-share services, from operating in Boston until a thorough study is completed on how their introduction would impact the city.

Councilor Gabriela Coletta Zapata, chair of the Committee on Government Operations, said during the weekly council meeting that more work was needed on the ordinance after an hours-long hearing on the matter on Tuesday.

During the hearing, many residents testified passionately on opposite sides of

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