Abstract
The indication given by a signal is known as the signal aspect. The usual sequence of signal aspects or indications in Great Britain is red, red/amber, green and amber. The amber period is standardised at 3 s and in all new signal installations the red/amber at 2 s.
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Reference
Department of Transport, General principles of control by traffic signals, Advice Note TA/16/81, London (1981)
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© 1989 R. J. Salter
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Salter, R.J. (1989). Signal aspects and the intergreen period. In: Highway Traffic Analysis and Design. Palgrave, London. https://doi.org/10.1007/978-1-349-20014-6_31
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DOI: https://doi.org/10.1007/978-1-349-20014-6_31
Publisher Name: Palgrave, London
Print ISBN: 978-0-333-48338-1
Online ISBN: 978-1-349-20014-6
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