Swiss Alps

Tunnel Digs Deep and Runs Long

Construction is nearing completion on the longest railway tunnel in the world.

February 21, 2011 - National Geographic

Two Sides Connect in World's Longest Tunnel Project

The two ends of the Gotthard Base Tunnel beneath the Swiss Alps are on the verge of connecting, marking a major milestone in the construction of what will be the world's longest transportation tunnel.

October 18, 2010 - The New York Times

News from HUD User

HUD's Office of Policy Development and Research

Call for Speakers

Mpact Transit + Community

New Updates on PD&R Edge

HUD's Office of Policy Development and Research

Top Books

An annual review of books related to planning.

Top Websites

The best of the Internet—since 2002.

Top Apps

Planning apps for a brave new world.

Top Schools

The definitive ranking of graduate planning programs.

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.