What do you mean by channelization?
Channelization is a traffic engineering concept which employs the use of secondary roads to separate certain flows of traffic from the main traffic lanes. One of the most effective and efficient methods of controlling the traffic on a highway is the adoption of high intersection geometric design standards.
What is collision diagram?
Explanation: A collision diagram is a schematic diagram of collision of two vehicles that occur during turning movements. In a collision diagram, each collision is symbolized by a set of arrows to indicate the direction.
What is possible capacity?
Possible capacity is the maximum number of vehicles that can pass a given point on a lane or roadway during one hour, under the prevailing roadway and traffic conditions.
What does traffic island mean?
A traffic island is a solid or painted object in a road that channels traffic. It can also be a narrow strip of island between roads that intersect at an acute angle.
What is a ghost island?
ghost island (plural ghost islands) (Britain) An area of road surface marked with cross hatching as a means of separating traffic or reducing speed, or to provide a safe area to turn right across approaching traffic.
What is the purpose of a traffic island?
It defined as an area marked separately as zones between the traffic lanes, used to regulate the movement of vehicles. The islands provides an area for the pedestrian to take refuge and placing the traffic devices.
What is the middle of the highway called?
The median strip or central reservation is the reserved area that separates opposing lanes of traffic on divided roadways, such as divided highways, dual carriageways, freeways, and motorways.
What is the median on a highway?
A median is the portion of the roadway separating opposing directions of the roadway, or local lanes from through travel lanes. Medians may be depressed, raised, or flush with the road surface.
What are the types of traffic island?
Classification and Types of Traffic Islands
- Channelizing Island: These go by the name and functions like a channelizer which provides direction to the vehicles.
- Divisional Island: These are used along the roads.
- Refuge Island: These are large in size and are meant for pedestrians rather than the vehicles.
Is it a roundabout or an island?
Roundabout or Islands are the same thing.
What is a raised traffic island?
When coming to a pedestrian crossing with a raised traffic island in the middle you only need to stop if a pedestrian is on your side of the road. A raised central island is designed to protect pedestrians, to an extent. A simple raised island provides a refuge for pedestrians in the middle of the road.
How do you approach a pedestrian crossing?
All pedestrians need to do to cross the roads safely is to press the button and wait for the prompt from the control panel. When the traffic lights turn red, you can safely cross the streets. When approaching this crossing, you will notice some zigzag lines and metal railings along the side of the road.
What is the white diamond on the road for?
In the United States and Canada, a diamond lane is a special lane on a street or highway that is reserved for specific types of traffic. These lanes are usually marked with white diamonds or lozenge, hence their name. High-occupancy vehicle lane (HOV), also known as a carpool lane.
What is a painted traffic island?
Some queried why the markings were there at all, to which RACQ explained the purpose of painted traffic islands were to manage traffic flow. “In this case the island is there to move traffic out of the left lane, which must turn, unless they’re going to turn left,” it wrote.
Can you drive on a painted island?
Painted traffic islands You can drive on a painted traffic island that is surrounded by a single continuous line for up to 50m to: enter or leave the road. enter a turning lane that begins immediately after the island.
When entering a roundabout you must give way to?
Giving way when entering or driving in a roundabout For this rule, give way means the driver must slow down and, if necessary, stop to avoid a collision.
When can’t you cross the single continuous line?
The only other circumstances in which NSW motorists can cross unbroken lines is to maintain the safe passing distance when overtaking a bicycle rider or to avoid an obstruction on the road.
Can you cross a solid line?
It says that while “crossing the line is discouraged” because it may be unsafe, it is permitted. In fact, California is one of just a few states where this is allowed.
Can you pass on a solid line?
Solid yellow lines, single or double, indicate that passing is not permitted. Broken yellow lines indicate that passing is permitted. Be sure that the lane is clear and the pass can be completed safely. Passing is not permitted for the driver with the solid yellow line on their side of the roadway.
Is sitting on the right lane illegal?
The NSW Road Rules state that on multi-lane roads with a speed limit of more than 80km/h, motorists must not drive in the right-hand lane unless they are: Overtaking. Turning right or making a U-turn. Avoiding an obstacle.
Is it illegal to overtake on the inside?
The Highway Code advises drivers not to undertake – although it is not a punishable offence in itself. It states: “Do not overtake on the left or move to a lane on your left to overtake.”
Is it legal to overtake on the right?
The laws in most states prohibit passing on the right except when the vehicle to be passed is about to turn left or the roadway is wide enough to accommodate two lanes of traffic.
Are you allowed to speed to overtake?
Yes, it’s illegal to speed while passing another car. In fact, it’s illegal to drive in excess of the speed limit at any time, no matter the circumstances. But while it might feel safer to try and complete an overtaking move quickly, you must always obey the speed limits or risk a significant fine.
Is under taking illegal?
On all roads, undertaking is permitted if the vehicles in the lane to the right are queueing and slow moving. Undertaking in an aggressive or reckless manner could be considered Careless Driving or more seriously Dangerous Driving, both of which are legally enforceable offences.
Where should you never overtake?
Do not overtake where you might come into conflict with other road users. For example: approaching or at a road junction on either side of the road. where the road narrows.