Urban archaeologists studying the ancient city of Kallan have long debated whether the city’s rectilinear street grid was imposed by centralized planners early in its history or whether it emerged gradually as separate neighborhoods adjusted their layouts over generations. Using ground-penetrating radar and excavations at 19 sites, researcher Lila Gomez mapped street foundations and building walls across Kallan’s core and periphery. Gomez argues that the grid reflects coordinated, citywide planning early in Kallan’s history rather than incremental adjustments accumulated over centuries.
Which finding from Gomez’s survey, if true, would most directly support her conclusion?