How are USPS delivery routes primarily determined?

USPS delivery routes are primarily determined by evaluating geographic area, population density, and delivery methods. This approach ensures that delivery is efficient and effective, accommodating the varying needs of different communities. Geographic area considerations include the layout of streets, neighborhoods, and terrain, which can impact travel times and logistics. Population density is critical as it affects how many deliveries can be made in a particular area; more densely populated regions may require more frequent service or additional routes to meet demand. Additionally, delivery methods are assessed to determine the most effective means of getting mail and packages to customers, whether that be through traditional vehicle delivery, foot routes, or other means. This comprehensive evaluation enables the USPS to develop routes that optimize service and resource allocation while ensuring timely delivery for customers.