Saturday, November 7, 2015

Pros and Cons Technologies That Aid Transportation


Describe the correct use of child restraint systems for passenger safety

Child restraint systems provide specialized protection for pediatric motor vehicle occupants whose body structures are still immature and growing. There are many occupant protection systems available and the different types of restraints are appropriately matched to children based primarily on their ages and sizes. Even with the most appropriate child restraint, the way in which it is installed and used can affect its performance. This review describes the basic principles behind the design of occupant restraint systems and applies them to the needs of children. It also includes a brief overview of child restraint testing procedures and their limitations. Each section describes research and insight behind current best practice concepts, primarily from the US perspective. 

Children up to the age of 4 must be properly restrained in a federally approved child safety seat that is attached to a vehicle by a seat belt or universal child restraint anchorage (LATCH) system. Children less than age 4 but weighing more than 40 pounds may be restrained in a booster seat with a lap/shoulder safety belt. However, a child safety seat that accommodates higher weights can be used. Children ages 4, 5, 6 and 7 must be properly secured in an appropriate child restraint system, one for which the child meets the height and weight recommendations of the child restraint manufacturer. An appropriate child restraint system is one that meets the child's size and weight recommended by the manufacturer.  A vehicle's safety belt is NOT a child restraint system.

Children riding in booster seats must be secured with a combination lap/shoulder seat belt, NEVER secure a child in a booster seat with only a lap belt. From the age of 8 until they reach their 16th birthday, children must be restrained in a seat belt whenever they ride in a vehicle. All Front seat passengers must be properly restrained at all times, regardless of age. Children 12 years and younger should ride in the back seat. By simply buckling up your child in the back seat reduces his/her risk of death by 33%. It is recommended that booster seats be used until your child is 4 foot 9 inches tall or weighs 100 pounds.

Describe the correct use of child restraint systems designed for children with special needs
 
Preschoolers and children with special needs often present a challenge when selecting child safety restraint systems to be used on school buses. In this second of a three-part series, we will continue to discuss common problems of this population and offer possible equipment solutions. Children with special needs, such as cerebral palsy, autism, or spinal cord problems require adaptive car seats or seat restraints for continued safety in cars or buses. Finding the right car seat for a special needs child can be a challenge with certain medical conditions or behavior problems that lead a child to repeatedly unbuckle a car seat's harness straps.

Understand the basic features of standards for crashworthiness of wheelchairs and seating systems

Wheelchair users who cannot transfer to vehicle seats must remain seated in their wheelchairs, using them as motor vehicle seats during transportation. However, in most cases, wheelchairs have not been designed to serve as motor vehicle seats and wheelchair components may not be able to withstand the loads associated with crashes. The level of protection that wheelchairs and their seating systems provide under impact is, in many cases. Vehicle seats are key to protecting occupants in a crash and accordingly motor vehicle seats have been designed to maximize occupant protection. Motor vehicle seats must undergo extensive testing to assure that they meet crashworthiness and occupant protection regulations as described by the Federal Motor Vehicle Safety Standards (FMVSS). Seats must be secured to the vehicle and maintain their integrity so as to not load the occupant during a crash. Vehicle seats and hardware must be designed and constructed to provide support and reduce injury to their occupant under impact loading and rebound. When functioning as a motor vehicle seat, wheelchair seating systems should provide a similar level of occupant protection. Testing of wheelchair seating systems and its components independent of a specific wheelchair will promote increased safety, as well as increased availability of transport-safe seating. Currently, service providers and consumers are limited in their selection of transport-safe seating since only those seats which have been sled impact tested with a WC19 approved wheelchair are designated as transport-safe by wheelchair manufacturers. In addition, little is known about the safety and little guidance exists for use of various postural support devices on wheelchairs used as motor vehicle seats.

Understand the use and basic features of standards for wheelchair tie-downs and occupant restraint systems (usually somewhere on a metal bar below the seat), it means you're good to go--literally. Wheelchairs that are WC-19 compliant have been specifically designed for use as a seat in a motor vehicle as a result of industry standards developed on a national and international level for wheelchair manufacturers, who must adhere to design, performance, testing, and labeling requirements for wheelchairs designated for use in wheelchair transportation:

  • A wheelchair must be able to withstand a 30-mph collision at 20-g with little or no structural damage.
  • A wheelchair must have at least four securement points to which a wheelchair tie-down strap can be safely attached.
  • A wheelchair must meet test requirements established by the Society of Automotive Engineers (SAE) for wheelchair tie-downs and wheelchair occupant restraint systems and how they are used.
  • A wheelchair must meet test requirements established by the Society of Automotive Engineers (SAE) for wheelchair tie-downs and wheelchair occupant restraint systems and how they are used.
They have developed similar standards to ensure transportation safety for wheelchairs manufactured in other countries. That said, compliance with these standards is voluntary for wheelchair manufacturers. When purchasing your next wheelchair, ask if the chair you're considering is WC-19 compliant and/or look for the sticker--particularly if you know you'll be using frequent, motorized, wheelchair accessible transportation. The sticker means a wheelchair user's reduced risk of injury in an accident.

Identify the major components of driver evaluation

Evaluation of the disabled driver is an objective assessment of driving skills for impaired drivers of all ages. The evaluation includes an in-clinic portion conducted by a licensed occupational therapist and a behind-the-wheel-evaluation conducted by a representative from a local driving school. This screening requires a physician’s prescription. Comprehensive in-clinic evaluations and screenings are performed by a licensed occupational therapist and results are totally confidential. Behind-the-wheel tests are offered by a driving school if determined necessary by the occupational therapist.


Identify the major components of driver retraining programs

The good news is that there is increasing evidence that older driver retraining can lead to improvements in general driving knowledge and driving-specific skills. The evidence-based recommendations to driver rehabilitation specialists regarding strategies to include in a driving retraining program for older adults include physical training targeting flexibility, coordination, and speed of movement, as well as an educational intervention combined with an on-road component. A previous systematic review of studies investigating skill-specific retraining interventions for older adults revealed eight English language studies. One investigated physical retraining, one, a visual perception intervention, and five, an educational intervention: one examined a combination of all three, in addition to traffic engineering improvements. Overall, the results suggest that the use of skill specific training may play a critical role in the re-training of driving skills in older drivers. An updated systematic review revealed 4 additional studies: one on physical retraining, one on education, and, two on education plus on-road training. The current evidence on the effectiveness of retraining aimed at older drivers is sufficiently encouraging to merit actions regarding intervention and program planning.

Discuss major design features to consider when making a vehicle purchase

The first factor that the trustee and family should consider is the amount available from the trust assets for the purchase. If the trust contains substantial liquid assets sufficient to meet the current and future needs of the beneficiary, then this factor will not be as significant. On the other hand, if the trust does not contain ample assets for current and future needs, the trustee must weigh the need for and availability of alternative types of transportation against other current and future needs of the beneficiary. The trustee can determine if there is any public source of funding, such as the Veterans Administration (VA) program or state department of vocational rehabilitation. A lease may be an appropriate financing tool for trusts that contain annuities or have non-liquid investments.

The lease or purchase of an accessible vehicle or the costs of a van conversion may offer a medical income tax deduction that could be helpful to offset income from investments. The trustee must evaluate the structure of the purchase, such as a lease, direct purchase or loan, in light of the particular situation. A plan for routine maintenance and the costs associated with vehicle maintenance should be considered at the time of purchase. The second factor relates to safety concerns. The goal is to purchase or lease an appropriate and safe vehicle. This cannot be done without an assessment of the beneficiary’s and driver’s needs. Who will be operating the vehicle? Does the potential driver have a history of seizures or other neurological conditions? Does the operator have a valid driver’s license? Has the driver had an assessment to identify driver specific recommendations for adaptive equipment? If the beneficiary is wheelchair dependent, has there been an assessment to determine what adaptive equipment is recommended? There are advantages and disadvantages of different wheelchair lift systems. Assessments of driver safety and appropriate vehicle adaptations are sometimes necessary before the trustee can approve of the disbursement for an appropriate and safe vehicle. While the trust beneficiary, his family or caretaker typically notify the trustee of the need for a vehicle and often have a particular vehicle in mind, the trustee must exercise its independent judgment regarding the appropriateness of the proposed vehicle and adaptations to it. What is a safe and appropriate vehicle for one person may not be for another. Trustees cannot be expected to be accessible vehicle safety experts, but trustees can consult with such experts to make informed decisions regarding safe and appropriate vehicle options to meet the particular needs of the beneficiary.

Discuss vehicle access issues for individuals with disabilities

The rear seat is the safest place for all children, and rear-facing car safety seats must never be placed in the front seat of a vehicle that has a front passenger air bag. The impact of a deploying air bag can severely injure or kill an infant or small child. Children may also be at risk of injury if they are out of position or lie against the door of a vehicle with a side air bag. For a child with special health care needs who requires frequent observation during travel and for whom no adult is available to accompany the child in the back seat, an air bag on/off switch should be considered for the vehicle. Instructions provided by the manufacturer of the vehicle and the manufacturer of the car safety seat must be followed. Plans for procurement of the most appropriate restraint and training for the proper use of the device and its installation in the vehicle should be incorporated into hospital discharge planning for all children with special needs. Any child with a medical problem should have a special care plan that includes what to do during transport if a medical emergency occurs. Parents, health care professionals, and educators should be encouraged to incorporate a child's special transportation needs into the individual education plan developed with the school.

Describe vehicle modifications to promote access for individuals with disabilities

If there’s one thing you might already know about accessible vans, it’s that they aren’t cheap. It might help to understand what’s involved in a van "conversion" and why it can cost anywhere from $12,000 on up (way up if you need equipment like high-tech hand controls) to make a van accessible. When a consumer buys an "adapted," "accessible" or "converted" van that means a standard van produced by a major automotive manufacturer such as DaimlerChrysler, Ford, General Motors or Toyota has had modifications made. Vans aren’t manufactured with accessibility features built in, since these need to be suited to the individual user. After it comes off the assembly line, the van gets modified or converted by another company, usually a specialized mobility equipment manufacturing company or mobility dealer.

Depending on make and model year, conversions can be done on a variety of both new and used vans. Modifications can range from simply adding a seat that turns and lowers to help a person get in and out, to a complete conversion that includes installing a ramp or lift system for a wheelchair user. A complete conversion involves several major changes to the standard minivan chassis, frame and interior. For example, minivan conversions include lowering part of or the entire floor by several inches, up to 10 inches on some models. That means for some brands, the gas tank must be relocated and/or replaced to accommodate the lowered floor, and systems such as fuel and heating/cooling must be rerouted. Many side-entry minivans also need an enhanced suspension system so the vehicle can lower itself and reduce the distance from the van floor to the ground.

Describe primary and secondary driving controls

Primary driving control options designed to operate the gas and brake steering controls of a motor vehicle. In years past, we developed a number of independent systems such as the popular EGB Electronic Gas Brake, DS-2000 Digital Steering, and DIGIDRIVE Digital Joystick Driving Control. Today, they manufacture one single control system, AEVIT. With the new AEVIT technology, more than ten different control input devices are available to meet your needs. Each of these different control inputs can be used in conjunction with the same control drive components and output servomotors to create a system tailored to your needs. The AEVIT primary driving control system provides a low-effort control solution for operation of the factory gas, brake, and steering controls. A variety of unique interfaces to the control system are available and can be mounted nearly anywhere in the driver's area of the vehicle. These "input devices," as they are called, have the look and feel of factory driving controls, but are designed specifically for the purpose of maximizing your abilities. As the acronym AEVIT implies, technology is the foundation upon which this remarkable driving control system is designed. AEVIT utilizes sophisticated microprocessor design and modern control area networking to convert your mechanical input into motion by the powerful output servomotors. These servomotors are installed to manipulate the factory gas and brake pedals, the factory steering column, or all three. Whether you require just gas and brakes, or just steering, or gas, brakes, and steering, there's an AEVIT system for you!

The secondary driving controls manufactured by EMC are designed to operate vehicle functions other than gas, brakes, and steering. We offer a variety of options for many different vehicle applications. Our controls can be purchased as a complete console system to complement your primary driving controls or they can be purchased individually. For example, if the AEVIT primary driving control system will be used to operate the gas/brake and/or steering functions in the vehicle, we recommend the Gold Series "complete" console system. On the other hand, if remote access is required for only a limited number of secondary driving controls, you may wish to consider the Econo Series console system. Of course for any application, one or more accessory stand-alone products may be desirable. Whether your application calls for voice activation or touchpad operation, EMC is committed to meeting your needs!

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