Dear Dr. Gridlock:

I would like to add to your response to the reader voicing her surprise that her son's instruction at a local driving school did not include driving on the Capital Beltway or Interstate 270 [Dr. Gridlock, July 21].

The required number of hours behind the wheel at a school to obtain your license is six. Did the reader feel her son was ready for the Beltway or I-270 after just six hours?

My son also took lessons from a school that did not train him on a highway, and I would not have wanted it to. He had logged some hours with me before he enrolled in the school, but after driving now for five months, he's still not ready.

Potomac Driving School taught my son the basics and did a terrific job. Although I consider myself a good driver, I wouldn't have been able to teach him parallel parking and, frankly, I don't remember the specifics of certain rules such as stopping distances, etc.

Susan Fusi

North Bethesda

Thanks for the endorsement of that driving school. I rarely get any. And good for you for not rushing your son to a license before he is ready.

New Md. License Laws

As a result of growing awareness of the need to provide more extensive training before licensing, Maryland is making a number of changes Oct. 1 to its laws governing drivers, including:

* A learner's permit must be held for six months before one can move on to a provisional license. The old requirement was four months. The eligibility age to obtain a learner's permit remains 15 years, 9 months.

* The amount of required practice time increases from 40 to 60 hours. At least 10 of those hours must be at night. Practice time is to be conducted with a driver who is 21 or older and has held a license for at least three years. Both the student and the licensed driver have to sign logs indicating the practice performed.

* Drivers under age 18 can no longer use any wireless communications device, except to call 911.

* Provisional drivers must remain free of traffic offenses for 18 months, or the 18-month waiting period starts all over. What's new is that the plea arrangement called "probation before judgment" will also count as a traffic offense.

For more information and other changes, log on to www.marylandmva.com.

All those changes seem to make sense to provide our young drivers more protection. What do you think?

Wipers On, Lights On

Dear Dr. Gridlock:

I'm a senior citizen and avoid driving at night and during bad weather, but sometimes I get caught. Last Friday, I got caught in a heavy downpour in the White Oak area. Visibility for me was terrible. But it didn't help that many other drivers didn't turn their headlights on.

Some drivers, I am sure, assumed that their driving lights were adequate, but they were not, because the taillights must be on for full protection in poor visibility.

I wish we could persuade drivers to turn on their headlights and taillights at dusk and in poor-visibility conditions. It could prevent them from being struck.

Corwin Hansen

Leisure World, Silver Spring

Wipers on, lights on. It's the law.

Choosing One's Commute

Dear Dr. Gridlock:

In a past column, you recommended that Caroline Miller relocate to Prince George's County to minimize both her commute to Annapolis and her husband's commute to Manassas [Dr. Gridlock, June 9].

I've lived in the Washington area for 25 years, and I would never consider moving to Prince George's County, because of its crime rate. In fact, I recommend that everyone in Prince George's County sell and move to where their tax dollars will be more effectively spent.

There are many aspects to relocation. Crime and car thefts are prime issues in Prince George's County and have been for years.

John Binford

Silver Spring

That should be a consideration. People move to jurisdictions weighing all the factors that are important to them. Convenience to job location ought to be one.

Stay on the Road

Dear Dr. Gridlock:

I believe that many unexplained roadside accidents involving pedestrians, bikers, parked cars and police are caused by drivers not being aware that they are steering where they are looking.

That tendency can be exacerbated by alcohol, drugs or fatigue.

A public awareness campaign, along with the adage "keep your eyes on the road," may be needed.

Morris Warren

Bowie

It is true that people tend to subconsciously steer their vehicles to where they are looking, such as off the road. We need to be more aware of that, particularly on long drives.

Anti-Theft, to Boot

Dear Dr. Gridlock:

One of your readers suggested "booting" our own cars to prevent them from being stolen [Dr. Gridlock, July 28].

Although I have never seen them for sale in this country, wheel clamps are commonly available and used on cars in Great Britain (although the device is not called a "boot," since that means trunk in British English).

An example of a Web retailer offering them for sale to the U.K. market is www.saundersonsecurity.co.uk/acatalog/Wheel_Clamps.html.

Jol A. Silversmith

Arlington

I would like to hear from someone who uses those.

One-for-Two Plates

Dear Dr. Gridlock:

I, too, have noticed an increasing number of cars without a front plate [Dr. Gridlock, July 21], even though Maryland law requires front and rear plates.

I own and operate two businesses in the Waldorf area, so I am often out driving around the area. I see an average of six to 10 cars without a front plate daily.

I have heard that some new Maryland residents, in order to avoid paying the state taxes and fees required to register two cars, will register only one car and use the two legal plates on the rear of two cars.

Despite the very high level of confidence I have in the Charles County Sheriff's Office, I can see how difficult it might be for an officer to notice a plate violation and ticket the violator. But this is obviously a growing problem, and it is costing the state in lost taxes and registration fees.

Bill Sturn

Waldorf

I checked with Buel Young, spokesman for the Maryland Motor Vehicle Administration, and he said he had heard absolutely nothing about this. Maybe these people are putting one over on the state.

Transportation researcher Diane Mattingly contributed to this column.

Dr. Gridlock appears Thursdays in Extra and Sundays in the Metro section. You can write to Dr. Gridlock at 1150 15th St. NW, Washington, D.C. 20071. He prefers to receive e-mail, at drgridlock@washpost.com, or faxes, at 703-352-3908. Include your full name, town, county and day and evening telephone numbers.