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This document describes a process for testing the comprehension of symbols or icons. Although the process may be used to test any symbols or icons, it has been developed specifically for testing ITS active safety symbols or icons (e.g., collision avoidance), or other symbols or icons that reflect some in-vehicle ITS message or function (e.g., navigation, motorist services, infotainment). Within the process, well-defined criteria are used to identify the extent to which the perceived meaning matches the intended meaning for a representative sample of drivers. Though the process described below reflects a paper-and-pencil approach to conducting the testing, electronic means (i.e., conducted using a computer) can be used as well. The data or results from this process are analyzed to assess the drivers’ comprehension of the symbol or icon. These data will be used to provide guidance in the design of in-vehicle symbols or icons.

This SAE Recommended Practice defines key terms and metrics applied in the analysis of video based driver eye glance behavior. It can be applied in environments from real world trials to laboratory based driving simulator studies evaluating Transport Information and Control Systems (TICS). The procedures described in this document could also apply to more general assessments of driver visual behavior in the absence of TICS or other advanced display and control systems associated with Intelligent Transportation Systems (ITS). Driver workload studies, design of traffic control devices and roadways, modality interference from use of cell phones, mirror redesign, situational awareness, and the effects of driver stress from sleep loss and trip delays are just a few of the studies that would benefit from a standard practice for measuring visual allocation.

Adaptive cruise control (ACC) is an enhancement of conventional cruise control systems that allows the ACC equipped vehicle to follow a forward vehicle at a pre-selected time gap by controlling the engine, power train, and/or service brakes. This SAE Standard focuses on specifying the minimum requirements for ACC system operating characteristics and elements of the user interface. This document applies to original equipment and aftermarket ACC systems for passenger vehicles (including motorcycles). This document does not apply to commercial vehicles. Furthermore, this document does not address future variations on ACC, such as “stop&go” ACC, that can bring the equipped vehicle to a stop and reaccelerate. Future revisions of this document should consider enhanced versions of ACC, as well as the integration of ACC with Forward Collision Warning (FCW).

This SAE Standard is derived from SAE J2805 and specifies an engineering method for measuring the minimum noise emitted by road vehicles. The specifications reproduce the level of noise which is generated by the principal vehicle noise sources consistent with minimal noise emission in urban traffic. The method is designed to meet the requirements of simplicity as far as they are consistent with reproducibility of results under the operating conditions of the vehicle. The test method requires an acoustic environment which is only obtained in an extensive open space. Such conditions usually exist during: Measurements of vehicles for regulatory certification Measurements at the manufacturing stage Measurements at official testing stations The results obtained by this method give an objective measure of the noise emitted under the specified conditions of test.

This SAE Standard is derived from SAE J2805 and specifies an engineering method for measuring the sound emitted by M and N category road vehicles at standstill and low speed operating conditions.. The specifications reproduce the level of sound which is generated by the principal vehicle sound sources consistent with stationary and low speed vehicle operating conditions relevant for pedestrian safety. The method is designed to meet the requirements of simplicity as far as they are consistent with reproducibility of results under the operating conditions of the vehicle. The test method requires an acoustic environment which is only obtained in an extensive open space or in special designed indoor facilities replicating the conditions of an extensive open space. Such conditions usually exist during: Measurements of vehicles for regulatory certification. Measurements at the manufacturing stage. Measurements at official testing stations.