Metered Ramps & DDIs

1. To collect a toll from drivers
2. To count vehicles for road maintenance
3. To close the ramp during rush hour
4. To evenly space vehicles merging onto the freeway

Answer: To evenly space vehicles merging onto the freeway

Ramp meters space out merging vehicles to reduce congestion.

1. Stop a car length behind the stop line
2. Pull completely up to the white stop line
3. Stop beside the Ramp Metered sign
4. Wait on the shoulder next to the signal

Answer: Pull completely up to the white stop line

Pull completely up to the white stop line so the pavement sensor detects your tires.

1. You get a written warning only
2. Nothing, ramp signals are only advisory
3. You can be ticketed
4. Only trucks can be ticketed

Answer: You can be ticketed

Disobeying a ramp signal can result in a ticket.

1. No signals, only signs
2. Two signals shared between all lanes
3. Each lane has its own signal
4. Only one signal for all lanes

Answer: Each lane has its own signal

Each lane at a metered ramp has its own traffic signal.

1. Guides drivers smoothly through exits and entrances
2. Closes the interchange to all left turns
3. Removes all traffic signals from exits and entrances
4. Replaces the interchange with a roundabout

Answer: Guides drivers smoothly through exits and entrances

The handbook says a DDI guides drivers smoothly through different exits and entrances; follow its signs, signals and road markings.

1. It allows higher speeds on the ramps
2. It eliminates the need for signals
3. It improves safety and reduces crowding
4. It adds extra lanes for trucks

Answer: It improves safety and reduces crowding

A DDI helps with safety, reduces crowding and lowers construction costs.