Here is a look at some of the transportation headlines gathered by us and the Metro Library. The full list of headlines is posted on the library’s blog.

Al Qaeda sought to target U.S. train network (Wall Street Journal)

The story — which is getting widespread play — is based on materials seized in Osama bin Laden’s compound in Abbottabad. Here’s an excerpt that pretty much sums it up:

In an “intelligence message,” the Department of Homeland Security alerted law-enforcement officials that initial analysis of evidence seized from bin Laden’s compound shows al Qaeda hoped to attack trains in the U.S., possibly on the anniversary of the Sept. 11 attacks.

According to the DHS bulletin, the terror group in early 2010 envisioned sabotaging a railway to cause a wreck. DHS said it isn’t clear if there has been any further planning since February 2010. The department didn’t offer details on the location or type of train, because the original information was vague, officials said.

As we posted earlier this week, security has been beefed up on the Metro system in the wake of bin Laden’s death and law enforcement officials are encouraging the public to be vigilant and “say something if they see something.”

Mayors focus on city designs amid budget shortfalls (NPR)

In this feature called “Tell Me More,” NPR’s Michel Martin talks to Philadelphia Mayor Michael Nutter and Los Angeles Mayor Antonio Villaraigosa about getting cities back on track after several years of recession. The conversation covers a lot of ground — from balancing budgets to urban design — but the 30/10 initiative gets a prominent mention. Villaraigosa touts the sustainability and job-creating benefits of the program.

Streetsblog’s Bike Month 2011 Mega-Page (LA Streetsblog)

Streetsblog has put together a one-stop shop for all your bike week information needs. From Malibu to Pasadena to Long Beach — and everywhere in between — there are events for everyone, whether your a seasoned rider, a first-time learner or just looking to dust off the old 10-speed. Metro will be partnering with a number of groups around the city to put on events, including Tuesday’s Blessing of the Bicycles and Wednesday’s Downtown Bike Ride. You can find the full details on Metro’s download-able posters in Spanish and English.