California wants to make shuttle services at airports more eco-friendly, which could pave the way for larger transportation sectors to adopt the technology. While airplanes are a notorious source of greenhouse-gas emissions, the ground vehicles servicing airports also contribute. A proposed regulation from the California Air Resources Board would require shuttle operators at the state’s 13 largest airports to transition their fleets to zero-emission vehicles. Switching the roughly 1,000 shuttles across California would have a modest impact on reducing overall greenhouse-gas emissions. But experts say it could provide a test case for bigger, more complex transportation industries to adopt zero-emission technology.

UC Davis just published a policy brief that will be very useful for legislators considering expanding state zero emission vehicle incentives to include e-bikes. Dillon Fitch, a researcher at UC Davis’ Institute of Transportation Studies, combed through reports and studies on existing e-bike incentive programs to evaluate whether they help reduce car trips. While available research is limited, he found that the programs report that between 35 and fifty percent of e-bike trips would have been made by car if an e-bike had not been available. Much of the research comes from European cities, where incentive programs are more common than in the U.S. Many are pilot programs, with an end date and a cap, that offer financial incentives to buy e-bikes. Some include other restrictions, such as only being available to current car commuters, or requiring e-bikes to be used for commuting, or adding higher incentives for cargo bikes.

When Project Neon wraps up next month there will be 22 miles of continuous High Occupancy Vehicle lanes in the valley and motorists will see changes in how those lanes are regulated. The HOV lanes will stretch from Silverado Ranch Boulevard in Interstate 15 to Elkhorn Road on U.S. Highway 95. The current two lane expressway lanes will be restriped to one HOV lane and one all-purpose lane, according to the Nevada Department of Transportation. With over 2.2 million residents and 43 million visitors, of which at least 60 percent drove, bottlenecks are becoming increasingly regular on valley highways.

Whatever you do, don’t call this thing where police are being told to pull over and harass people in predominately African American neighborhoods for the nit-pickiest reasons a “policy.” Louisville Metro Police Chief Steve Conrad made that clear Tuesday night when he went before a joint meeting of the Metro Council’s public safety and government accountability committees and answered questions about the department’s policy … er … make that “initiative” that has people up in arms. Each time someone called it a policy, he corrected them. He never said it wasn’t being done, he just split hairs about whether it was a policy or a directive or whatever. But he never claimed that drivers in black neighborhoods weren’t being harassed. It was this policy — scratch that, “guideline” — that caused police to pull over Tae-Ahn Lea last summer and drag him out of his car and put handcuffs on him as he stood on the side of the road. All for making a turn that was a little wider than law allows.

Several states across the country are trying to make changes to speed limit laws. While some are looking to eliminate speed limit differentials for cars and trucks, others are trying to introduce them. The states in discussion are Arkansas, California, Kentucky, Massachusetts, Montana, Oklahoma, and West Virginia.