33
/ru/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
October 1, 2025
Create a timeline
Public Timelines
For education
For educational institutions
For teachers
For students
Cabinet
For educational institutions
For teachers
For students
Open cabinet
FAQ
Получить премиум
Close
Create a timeline
Public timelines
Library
FAQ
About & Feedback
Соглашение
Приватность
Библиотека
FAQ
Support 24/7
Cabinet
Get premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL
Редактировать
Скачать
Export
Создать копию
Premium
Встроить в сайт
Share
Traffic signals history
Category:
Иное
Обновлено:
9 дек 2019
0
0
272
Авторы
Created by
cse
Attachments
Comments
События
First traffic signals installed in London, UK
First three-coloured light signals in New York. Police operated.
First three-coloured light signals in England. Police operated.
First fixed time signals in USA using vehicle-actuated detector. Adopted soon after by England and Melbourne.
First traffic-actuated non-fixed time signals in Sydney, Australia.
1000 traffic signals installed in NSW
~2400 traffic signals installed in NSW ~1700 controlled by SCATS
About & Feedback
Соглашение
Приватность
Библиотека
FAQ
Support 24/7
Cabinet
Get premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL
Comments