This Sunday, more than 26,000 runners will be pounding the streets of Houston in a marathon weekend: the Chevron Houston Marathon, Aramco Houston Half Marathon, El Paso Corporation 5K and Texas Children's Hospital Kids' Fun Run. The expected turnout means service changes at METRO since many streets will be blocked ...

    This Sunday, the Chevron Houston Marathon will attract thousands of runners who will be sprinting through much of downtown. That means METRO's service will be affected. From 6 a.m. to 8 a.m., the majority of downtown streets will be closed, north of  Lamar Avenue.   METRO will be unable to offer bus service during ...