Q Is there any plan to fix the air conditioning on BART? These cars are like rolling ovens. The Pittsburg/Bay Point line is particularly bad, as these trains are almost always packed. I expect to not have to sit or stand in sweltering trains like I was riding on a train built in 1930, especially when a one-way ride is more than $6.

Richard Angeloni

Brentwood

A BART agrees that it can be sweltering on many of its cars with nearly one in three being particularly warm. There are 230 "second generation" cars and these have far more air conditioning problems than the 439 earlier generation cars that were modernized in the late '90s.

BART says the problems are a result of the air conditioning systems designed to serve seated passengers, not crowded trains with so many standees as is often the case now. The units in these cars were designed to kick in full blast at 76 degrees, but the aging units don't always catch the temperature changes, making for some overly hot cars. BART is modernizing these cars and they could be replaced by the end of 2015.

New trains due to arrive in 2017 will be able to handle larger crowds and will have thermostats able to withstand outside temperatures of 110 degrees.

If you are on a BART car that seems to have no air conditioning, use the intercoms on either end of the train to let the train operator know (the car number is located at either end of the car above the door) so the problem can be reported for maintenance.


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Climate control in each car is independent, and automated, so the temperature can't be adjusted by an individual train operator, but he or she can report the problem.

Or try moving to another car. Because the climate control is separate in each car, you may find a more comfortable spot just one car over.

Q Any transit options for the Quakes new stadium near the San Jose airport.

Eamonn Gormley

A The VTA is meeting with the Earthquakes now on transit options for their new stadium. Stay tuned.

Q Got any buddies on the Sunnyvale PD? With the city cramming more people down the throat of the Mathilda Monster, and still more on the way looking at the 8-story buildings being constructed, more and more folks are trying to go through the intersection of Mathilda and Moffett Park Boulevard.

In the evening, the line to turn right from eastbound Moffett Park onto southbound Mathilda gets rather large and, inevitably several folks decide to skip the line and make the illegal right turn up at the light (fighting with the folks coming west on Moffett Park who when making their lefts onto southbound Mathilda invariably choose to block the intersection). While ticketing may be difficult there, the revenue opportunity seems to be considerable.

Rick Jones

Sunnyvale

A Sunnyvale police are fully aware of this mess, as the Mathilda Monster interchange at 237 and 101 is widely acknowledged as one of the most complex in the area with uncontrolled ramp movements, limited bike and pedestrian access, weaving at the 101 ramps, closely spaced signals and limited space for queuing.

Whew! Environmental studies for a new interchange will be underway next year and a new design completed in 2016. Construction could begin three years, though that seems optimistic to me.

Q Country Club Road, Glenbrook, and connecting roads such as Bowling and Beechwood in Oakland badly need resurfacing. When might that happen?

T. Bhatia

Oakland

A Not for some time. City officials say none of these residential streets are currently on its five-year plan for repairs. Go to www2.oaklandnet.com/Government/o/PWA/o/EC/s/STS/OAK030328 for a street repair schedule.

Q I noticed that I-680 through the Concord/Pleasant Hill area has been getting much needed road grinding. Will this also be done on Highway 242? It needs it as well.

H. Loer

Concord

A No. Nothing is planned in the near future.

Q With there being no grade separation between the bike trail near Levi Stadium and 49er fans pouring in from the parking lot, it sure does appear to me the bike trail will be closed on event days. Please tell me this isn't so. I am sure many events will be going on at the stadium. If the trail is closed for events, it could mean this recreation path could be closed on many days -- days it would get the most use from bicyclists.

Bill Ortendahl

Santa Clara

A Stadium officials will keep the bike trail open as long as possible just before 49er football games and other events, close it and reopened it later based on security measures.

Look for Gary Richards at Facebook.com/mr.roadshow, follow him at Twitter.com/mrroadshow or contact him at mrroadshow@mercurynews.com or 408-920-5335.