Final answer:
In urban areas, electronic and telephone polling are the most common survey methods, with RDD being a notable technique for achieving representative samples. Face-to-face interviews are less common due to cost and logistical issues.
Step-by-step explanation:
The survey system most commonly used in urban areas today involves a combination of electronic administration such as online surveys and telephone polling. Traditional methods like face-to-face interviews are less common due to the high costs and logistical challenges. Organizations conducting surveys in urban areas might utilize random-digit-dialing (RDD) to generate phone numbers randomly, ensuring the inclusion of unlisted and cellular numbers for a more representative sample. Moreover, companies may purchase directories containing specific demographics to target registered voters, consumers, or other distinct groups. Advances in technology have enhanced the precision of survey methodologies, moving away from the more arbitrary methods of walking neighborhoods and cold-calling from phone books.