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  • DriverReach is the Driver Recruiting and Compliance Management System that helps recruiters convert leads, hire faster, build relationships, and be more productive.
  • These drivers must be well-suited to life on the road and adhere to all traffic laws, which may vary from state to state. Tractor-Trailer Driver Truck Drivers supply companies with the products they need to keep their businesses running. Tractor-Trailer Drivers operate and drive tractor-trailers and often get to map their own routes as they travel.
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If your idea of an exciting job is being on the open road instead of behind a desk, consider training for a Class A commercial driver’s license. Since 1986, a commercial driver’s license (CDL) has been required to operate certain vehicles such as semi-trucks, tractor-trailers, and buses. The federal government passed the Commercial Motor Vehicle Safety Act to improve highway safety as well as outline the minimum requirements for a CDL. However, individual states actually issue the licenses and have their own requirements. Find out how to get a commercial driver’s license below.

Types of Commercial Driver’s Licenses

The Oregon Court of Appeals reversed the conviction of the driver who ran over and killed 2 Forest Grove girls who were in a leaf pile in front of their home in 2013.

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There are three main types of commercial driver’s licenses: Class A, Class B, and Class C. In most states a Class A CDL allows the driver to operate any vehicle with a semi-trailer or trailer with two or more axles. This group also includes any combination of vehicles with a gross vehicle weight rating greater than 26,000 pounds, provided that the gross vehicle weight rating of the towed vehicle is in excess of 10,000 pounds.

The difference between a Class A and Class B commercial driver’s license is a Class B CDL allows the driver to operate any heavy straight vehicle with a gross vehicle weight rating greater than 26,000 pounds, as well as any vehicle towing another vehicle, not in excess of 10,000 pounds.

Finally, a Class C CDL allows the driver to operate any vehicle that is designed to transport 16 or more passengers (including the driver) or is used in the transportation of materials classified as hazardous in the Hazardous Materials Transportation Act.

How to Get a Commercial Driver’s License

Most states require candidates to pass a practical and written exam before earning a CDL. Unless you have previous experience operating a commercial vehicle, it is highly recommended to take a training course before attempting the exams.

Research the requirements in your state to ensure you understand them prior to selecting a training course as there may be a lot of variation between areas. For example, in Pennsylvania a CDL is required for anyone to drive a vehicle that carries 16 or more passengers including the driver, a school bus transporting minors, and any vehicle carrying hazardous materials, while in California a driver must have a CDL if their primary employment is driving, whether or not they actually drive a commercial vehicle.

Career Opportunities in Commercial Truck Driving

Earning a Class A CDL qualifies you for job opportunities with a wide variety of trucking companies. While the license will get you hired, some companies require new drivers to complete a certain number of “ride along” hours shadowing an experienced trucker to learn the finer points of the routes and loading protocols. Once you have the required mileage under your belt, you could also go on to start your own transportation company.

Driving a commercial motor vehicle requires a higher level of knowledge, experience, and physical ability than simply driving a car. By regulating commercial driver’s licenses with Class A CDL permit tests, the government keeps our highways and roads safer. Visit your state’s Department of Motor Vehicle’s website to learn more about Class A CDL requirements in your state or to learn more about CDL training and permit test preparation.

Driver's Aid

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If you are interested in pursuing a career as a commercial truck driver in the Pennsylvania area, McCann School of Business and Technology can help you get the CDL training you need in as little as five weeks.

McCann’s CDL Training: Class A Tractor Trailer program provides instructors with field experience, full-size equipment and the opportunity for students to clock the driving hours needed to complete their CDL training.

Click hereto learn more about McCann’s CDL Training: Class A Tractor Trailer* program and where our training facilities are located.

*CDL Training: Class A Tractor Trailer is not within the scope of ACICS accreditation and is not eligible for Title IV funding.
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Police callbox, Washington, D.C., 1912

A call box or callbox is a (usually metal) box containing a special-purpose direct line telephone or other telecommunicationsdevice, which has been used by various industries and institutions as a way for employees or clients at a remote location to contact a central dispatch office.


Police and taxicab dispatching[edit]

Some taxi companies used callboxes before the introduction of two-way radio dispatching, as a way for drivers to report to the dispatch office and receive customer requests for service. Taxi callboxes would be located at taxicab stands, where taxis would queue for trips.

Also, before the introduction of two-way radios, some police agencies installed callboxes or 'police boxes' at street locations as a way for beat officers to report to their dispatch office. Before the development of emergency telephone numbers and the proliferation of mobile phones, some firefighting agencies installed callboxes at various street locations, so that a pedestrian or driver spotting a fire could quickly report it.


A growing number of retailers use call boxes in their stores as a way for shoppers to summon service (Shopper Call Box) as well as for store employees to summon assistance (Director Call Box). Retail call boxes are generally wireless devices that communicate to in-store communication devices via radio frequency (303 MHz) or through 802.11 networks.

Call box in California

Motorist aid[edit]

Call boxes also exist at regular intervals along the sides of many highways and rapid transit lines around the world, where drivers or passengers can use them to contact a control centre in case of an accident or other emergency. Such call boxes are often marked by a blue strobe light which flashes briefly every few seconds.[citation needed] Boxes in remote areas often now have solar cells to power them.

U.S. highways with callboxes have included most of the major highways in California, Florida's Turnpike and Interstate 185 in Georgia. Rather than a telephone, these devices simply have four buttons to push: blue for accident or other emergency (send police/fire/medical), green for major service (mechanical breakdown, send a tow truck), black for minor service (out-of-gas or flat tire), and yellow for cancel.[clarification needed] Roads in other places may have voice call boxes, though these are more expensive, and must either be wired long distances, or rely on spotty rural mobile phone service.

Many cellular callboxes in California now include a TTY interface for hearing-impaired users.

New York University callbox

Call boxes have the advantage that their location is immediately known, while mobile phone users in trouble do not necessarily know where they are. For example, in California a cellular call to 911 connects to the California Highway Patrol, whereas a callbox will connect to a dedicated regional answer center. The DTMFautomatic number identification (ANI) or caller ID from the callbox will be used to display the callbox sign number and its location on the computer-aided dispatch (CAD) system.

An emergency callbox can also have a secondary function as a remote terminal unit (RTU). Experimental systems deployed around Sacramento, California, were used to connect fog sensors and closed-circuit television using the cellular transceiver within the callbox.[1]

Decline in usage[edit]

In California, freeway callboxes were used about 98,000 times in 2001. That number dropped by 80 percent to 20,100 times in 2010, or about 1 call per box per month. The cost of callboxes for the Service Authority for Freeways and Expressways (SAFE) program in the San Francisco Bay area is $1.7 million annually.[2] As a result, since 2009 approximately half of the callboxes have been removed from certain California highways, preferentially leaving them only in places where cell phone coverage is poor.[3]

The State of Florida previously had callboxes installed at one-mile intervals along all its Interstate Highways as well as Florida's Turnpike. These boxes were all removed by 2014 after a 65-percent decrease in usage over an eight-year period, in line with increased mobile phone usage. The boxes were costing the state roughly $1 million per year to keep operational.[4]


On many North American college and universitycampuses today, callboxes are installed at various locations around campus so that students, staff, or visitors can contact campus security in case of an emergency. Often, these are voice call boxes using a mobile phone service, and are solar-powered, so no wiring need be extended to the middle of a parking lot or other remote location. Thus, they can function during a power outage if the cell site is still powered.

New York City has a large system of call boxes intended to summon a police or fire department response, where calls are routed to local dispatchers, instead of the general 9-1-1 queue. The New York City Fire Department reports that 2.6 percent of emergency calls they receive originate from call boxes, 88 percent of which are false alarms.[5] City officials have attempted to remove the callboxes, however federal Judge Robert W. Sweet denied the City's request to lift an injunction preventing their removal.[6]

Wireless call boxes[edit]

Call boxes may be wired or wireless. Wireless systems use radio frequencies in the VHF or UHF business band radio spectrum. Many callboxes can be programmed to be compatible with virtually any brand of VHF or UHF business band portable or fixed-base radio. Many in the United States require an FCC license, but some are certified for use on special FCC license-free business frequencies.

If the required distance is greater than the range of the wireless call box, an external antenna can extend the range. In the FCC-licensed frequency range, radio repeaters can extend this range even more.[7]

A wireless call box that runs on solar power can be truly wireless, since no power lines need be run to it.


In the United States, the Gamewell Company of Newton, Massachusetts manufactured fire alarm call boxes, beginning in the 1880s.[8] These would telegraph a location code to the central fire station when a lever was pulled in the box.[9]

Although it is difficult to determine when and where the earliest highway emergency phones were developed, undoubtedly one of the earliest examples were the freeway phones developed in Western Australia in 1966. This system was developed by Alan Harman, an employee of a Western Australian security firm, Central Station Security Company, Electronic Signals Pty Ltd, who came up with the idea after reading of a pile-up on the Kwinana Freeway. The newspaper article mentioned that assistance had been difficult to provide to those involved in the pile-up. The system Harman envisaged was a series of telephone units in a box on a short post, spaced at 160 metre intervals along Perth's freeways. Picking up the handset would trigger an alarm in the Main Roads control centre and police, fire or ambulance could then be determined by the caller. Harman developed the system with the approval of the Main Roads Commissioner and Chief Engineer, by adapting the existing design of communication facilities used at the security firm in which he worked.[10]

See also[edit]

Drivers Aid Book



Wikimedia Commons has media related to Call boxes.
  1. ^ 2009-04-27 at the Wayback Machine Sutter County Smart Call Boxes
  2. ^Cabanatuan, Michael (May 1, 2011). 'Highway call boxes becoming obsolete'. San Francisco Chronicle. Retrieved March 19, 2013.
  3. ^Shine, Nicole Knight (2015-06-05). 'In the age of cellphones, how much do we need highway call boxes?'. Orange County Register. Retrieved 2017-10-10.
  4. ^Morelli, Keith (October 17, 2013). 'Florida dismantling call boxes along interstates'. The Tampa Tribune. Archived from the original on March 11, 2016. Retrieved March 10, 2016.
  5. ^Chatelain, Phileppe (2013-10-16). 'Cities 101: Red Fire Alarm Boxes in NYC, do They Even Work?'. unTapped Cities. Retrieved 9 January 2018.
  6. ^Weiser, Ben (15 August 2011). 'City Loses Bid to Remove Call Boxes'. The New York Times. New York. Retrieved 9 January 2018.
  7. ^'Wireless Callbox System FAQs'.
  8. ^''Gamewell FCI''. Archived from the original on May 12, 2008.
  9. ^Sweeney, Emily (January 27, 2008). 'No cause for alarm'. Boston Globe.
  10. ^Humble beginnings for freeway phones (July 1998). Western Roads: official journal of Main Roads Western Australia, 21(2), p.18. Perth: Main Roads Western Australia, 1998.
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