● Each country is a unique chapter in the BOOK OF HUMANITY, written in the sweat and blood of people whose PAGES will now remain forever ● 每个国家都是《人类之书》中独特的一章，由人们的汗水与鲜血写就，而他们的篇章如今将永世留存 ● Каждая страна — уникальная глава КНИГИ ЧЕЛОВЕЧЕСТВА, написанная потом и кровью людей, чьи СТРАНИЦЫ теперь будут оставаться навсегда ●

    Introduction
    Which are the key means of transportation in United States? United States has transport systems like Rail, Air, Pipeline, etc, with Waterways of about N/A. The Civil aircraft registration country code prefix is N
    Transportation in United States
    Number of Airports N/A
    Heliports N/A
    Pipelines N/A
    Railways
    Total 293,564.2 km (2014)
    Standard gauge 293,564.2 km (2014) 1.435-m gauge
    Roadways
    National air transport system
    Ports and terminals
    Merchant marine
    Total 3,533 (2023)
    By type bulk carrier 4, container ship 60, general cargo 96, oil tanker 68, other 3,305
    All Important Facts about United States

    Want to know more about United States? Check all different factbooks for United States below.

    United States is found in North America