page content the independent electricity system operator ieso works at the heart of ontario s power system ensuring there is enough power to meet the province s energy needs in real time while also planning and securing energy for the futureit does this byntario s ieso works to ensure sufficient electricity is available whenever and wherever it s needed ensuring there is enough energy to meet demand is an ongoing and highly complex process requiring the close coordination of all parts of the system
In cars, the parking brake, also called hand brake, emergency brake, or e-brake, is a latching brake usually used to keep the vehicle stationary. It is sometimes also used to prevent a vehicle from rolling when the operator needs both feet to operate the clutch and throttle pedals.
This section tells you about air brakes. If you want to drive a truck or bus with air brakes, or pull a trailer with air brakes, you need to read this section. If you want to pull a trailer with air brakes, you also need to read Section 6, Combination Vehicles. Air brakes use compressed air to make the brakes work. Air brakes are a good and safe way of stopping large and heavy vehicles, but the brakes must be well maintained and used properly. Air brakes are really 3 different braking systems: service brake, parking brake, and emergency brake.