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  2. Traffic signal preemption - Wikipedia

    en.wikipedia.org/wiki/Traffic_signal_preemption

    Traffic signal preemption (also called traffic signal prioritisation) is a system that allows an operator to override the normal operation of traffic lights.The most common use of these systems manipulates traffic signals in the path of an emergency vehicle, halting conflicting traffic and allowing the emergency vehicle right-of-way, thereby reducing response times and enhancing traffic safety.

  3. Light characteristic - Wikipedia

    en.wikipedia.org/wiki/Light_characteristic

    A flash is repeated regularly at a rate below 50 per minute. Fl G 5s 4.2 Long-flashing: L.Fl A light flash, duration of more than 2 seconds (long flash) is repeated regularly. L.Fl W 10s 4.3 Group-flashing: Fl(x) A group of a specific number of flashes are repeated regularly. Fl(3) R 15s 4.4 Composite group-flashing: Fl(x+y)

  4. WebKit - Wikipedia

    en.wikipedia.org/wiki/WebKit

    WebKit is a browser engine primarily used in Apple's Safari web browser, as well as all web browsers on iOS and iPadOS. WebKit is also used by the PlayStation consoles starting with the PS3, the Tizen mobile operating systems, the Amazon Kindle e-book reader, Nintendo consoles starting with the 3DS Internet Browser , GNOME Web , and the ...

  5. Traffic light control and coordination - Wikipedia

    en.wikipedia.org/wiki/Traffic_light_control_and...

    Attempts are often made to place traffic signals on a coordinated system so that drivers encounter a green wave — a progression of green lights. The distinction between coordinated signals and synchronized signals is very important. Synchronized signals all change at the same time and are only used in special instances or in older systems.

  6. Notification Center - Wikipedia

    en.wikipedia.org/wiki/Notification_Center

    All previous notifications are collated into the Notification Center panel, which can be displayed in iOS by dragging down from the status bar, and in macOS by clicking on the notification center icon to the very right on the menu bar at the top of the screen (or using track-pad gestures, swiping from right to left).

  7. Remove Banner Ads with Ad-Free AOL Mail | AOL Products

    www.aol.com/products/utilities/ad-free-mail

    SYSTEM REQUIREMENTS. Mobile and desktop browsers: Works best with the latest version of Chrome, Edge, FireFox and Safari. Windows: Windows 7 and newer Mac: MacOS X and newer Note: Ad-Free AOL Mail ...

  8. Variations in traffic light operation - Wikipedia

    en.wikipedia.org/wiki/Variations_in_traffic...

    The left turn signal head operates independently from the signals for straight-through traffic. This allows permissive turning even when straight-through traffic is shown a red light, avoiding yellow trap. Louvers are fitted over the green and yellow balls of the left turn signal head to prevent driver confusion. The left turn signal head is ...

  9. Overview of the updated AOL app experience for iOS

    help.aol.com/articles/overview-of-the-updated...

    Tap the three dots button in the lower-right corner and tap on Forward icon. Compose your message and tap Send. Delete an email. To delete an email in the app, there are a few options. From the message list, swipe to the left on a message to delete. Tap on a message to open it and tap the trash can in the lower left. Delete multiple messages ...