A conversation all about density, on the occasion of the return of an online resource, Visualizing Density, at the Lincoln Institute of Land Policy website. Density is in the spotlight as cities and towns seek to build more multifamily housing to help address a stubborn affordability crisis.

Denver Mayor Mike Johnston, in an interview for the Mayor’s Desk series, details work on housing affordability, homelessness, and other growing pains amid the city’s increasing popularity. Solutions include reducing building costs, incentivizing new construction, and taking better advantage of the metro region’s extensive light rail network for transit-oriented development.

Demand for walkable urbanism is stronger than ever, according to Mallory Baches, president of the Congress for the New Urbanism, an organization that has been promoting compact, mixed-use, transit-oriented development for more than three decades.

At the helm in Providence,Rhode Island after 30 years of steady revitalization, Mayor Brett Smiley hopes to keep up the momentum while also addressing affordability and fiscal challenges. The latest municipal leader to be interviewed in the Mayor’s Desk series, he also talks bike lanes, nightlife, and the vagaries of community engagement.

Rob Walker, author of City Tech: 20 Apps, Ideas, and Innovators Changing the Urban Landscape, reflects on how artificial intelligence could transform urban planning, along with other advances in technology that are poised to improve quality of life in cities.

Community Land Trusts, where homebuyers purchase homes but not the land underneath, is an affordable housing solution that deserves more attention, say the authors of a new report that reveals the critical ingredients for success.

St. Louis Mayor Tishaura Jones talks about regeneration strategies for the Gateway to the West, a postindustrial legacy city trying to bounce back from manufacturing and population loss. The interview is the latest in the Lincoln Institute’s Mayor’s Desk series, highlighting municipal chief executives from around the world.

Technological advances in satellite imagery and data management have boosted the field of geospatial mapping, making it possible to show all kinds of land uses across parcels, blocks, neighborhoods and regions. Jeff Allenby at the Center for Geospatial Solutions explains how the tools are helping local decision-makers understand property ownership patterns and the potential for much-needed new housing.