Bikes First. To protect its cycling tradition and its bikers’ safety, Copenhagen continues to enhance its metropolitan bicycle system.  StreetsBlog reports that 37 percent of the city’s urban population bikes to and from work and school on the city’s extensive network of bicycle-only lanes, park paths, and renovated railway tracks. The public transportation system also supports bicycle-travel, while the city has slowly reduced the number of car lanes on streets and auto-routes.

Pedestrians, Too. Chicago moves forward this week on its highly anticipated Pedestrian Plan – an attempt to remedy high levels of hit-and-run fatalities and create a safer walking environment. After the tragic death of Martha Gonzalez at the South Halsted Street intersection, the municipal government realized that further safety measures must be taken.  According to the Tribune, the city will host eight public meetings throughout the summer to gather constituent input, the foundation of the Chicago Department of Transportation’s action plan.

Construction Sand-Box. While excavating the foundation of his new home in Colorado, Ed Mumm was inspired to develop the Dig This project–a construction equipment playground for adolescents and adults. PSFK reveals that Munn’s second Dig This location recently launched in Las Vegas, where guests can operate a Caterpillar bulldozer or excavator after attending a 30-minute safety briefing.

River Craft. BldgBlog brings news that the Dutch art group Observatorium finished Waiting for the River, a 125-foot-long habitable bridge, in 2010. The project is installed on the Emscher River wetlands, a sewer canal contained by dikes that will flood completely within 10 years. Observatorium invites people to wait for the river in the reclaimed-timber cabins; furnished with beds and plumbing.