How Long to Read Quieter Cars and the Safety of Blind Pedestrians

How Long Does it Take to Read Quieter Cars and the Safety of Blind Pedestrians?

It takes the average reader to read Quieter Cars and the Safety of Blind Pedestrians by Lisandra Garay-Vega

Assuming a reading speed of 250 words per minute. Learn more

Description

The National Highway Traffic Safety Administration recognizes that quieter cars such as hybrid-electric vehicles in low-speed operation using their electric motors, may introduce a safety issue for pedestrians who are blind. This study documents the overall sound levels and general spectral content for a selection of hybrid-electric and internal combustion vehicles in different operating conditions, evaluates vehicle detectability for two ambient sound levels, and considers countermeasure concepts that are categorized as vehicle-based, infrastructure-based, and systems requiring vehicle-pedestrian communications. Overall sound levels for the hybrid-electric vehicles tested are lower at low speeds than for the internal combustion engine vehicles tested. There were significant differences in human subjects' response time depending on whether electric or internal combustion propulsion was used at both the lower and higher levels of ambient sound. Candidate countermeasures are discussed in terms of types of information provided (direction, vehicle speed, and rate of speed change, etc.); useful range of detection of vehicles by pedestrians, warning time, user acceptability, and barriers to implementation. This study provides baseline data on the acoustic characteristics and auditory detectability of vehicles; however, the results cannot be generalized to more complex environments, as for example when multiple target vehicles are present.

How long is Quieter Cars and the Safety of Blind Pedestrians?

Quieter Cars and the Safety of Blind Pedestrians by Lisandra Garay-Vega is 0 pages long, and a total of 0 words.

This makes it 0% the length of the average book. It also has 0% more words than the average book.

How Long Does it Take to Read Quieter Cars and the Safety of Blind Pedestrians Aloud?

The average oral reading speed is 183 words per minute. This means it takes to read Quieter Cars and the Safety of Blind Pedestrians aloud.

What Reading Level is Quieter Cars and the Safety of Blind Pedestrians?

Quieter Cars and the Safety of Blind Pedestrians is suitable for students ages 2 and up.

Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.

When deciding what to show young students always use your best judgement and consult a professional.

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