A dual carriageway is a road with a central reservation separating traffic travelling in different directions. It is not necessarily two lanes in each direction, it could be just one lane each way. A road with 3 lanes in each direction could be a single carriageway, if there is no central reservation. An example of a single carriageway with 2 lanes in each direction is Victoria Avenue, in Southend, between Priory Park and the Blue Boar.
As soon as you enter the slip road check that there is nothing parked at the end of it, where it joins the main road. Then accelerate to match your speed with the main road traffic - holding in 3rd will maximise acceleration. Keep with the kerb* and use the whole length of the slip road to reduce the angle of approach to the main road, and hence minimise your blindspot.
Check your right side mirror frequently, and your blind spot at least 3 times (photo above), don’t twist your shoulders or you may swerve. Vehicles on the main road may try to move to their right to let you out. Be careful though, they may indicate right, but not be able to move because of other traffic overtaking them. Try to change your speed, by accelerating more, just before you cross the line as you enter the main road. This means that anyone hidden in your blindspot will drop back, and you will see them.
* Entering the main road, the left hand lane of the slip road is preferred. Because using the left-hand lane means that if you cannot emerge due to heavy traffic (in an emergency) you have room on your left to manoeuvre into; without worrying about other traffic on your left.
When leaving the main dual-carriageway you may need to be careful when you indicate because of other turnings. If you indicate too early you may cause someone emerging from an earlier turning to pull-out in front of you, because they think that you are turning into it. In this situation you still need to indicate, but do it late so that your indication is not misinterpreted.
An example of this would be when leaving the A127 (London bound) at Pound Lane - if you indicate too early it may look as though you are turning into Alton Garden Centre.
Here are some testimonials from previous students:
"I learnt to drive with Alan and passed my test first time. Alan was patient and calm, even when i made squeaking noises. He never pushed me to try anything i wasn't ready for but also challenged me enough that i was progressing every week. His random expressions - "it's a clutch, not a foot rest" "lots of lovely mirrors" genuinely helped me to remember everything. As long as you can endure his jokes - "i'm just getting my binoculars so I can see the curb" - then i would recommend Alan to anyone" Willow Scarisbrook - Thundersley
"Alan was the exact kind of instructor I was looking for - local, reliable, available at the times I wanted and good value for money. Alan never rushed me on any of my lessons, and knew exactly how far to challenge me each time and increase my confidence.
I found Alan to be calm, chatty and very good at explaining things without being condescending. I found the website useful especially in preparation for my test. Alan prepared me so well for my test day, that I wasn't even nervous! I would happily recommend Alan to anyone thinking of driving lessons, and the trial lesson was a great idea!" Angela Borst - Rayleigh
"I passed first time with Alan about 6 years ago. Would definitely recommend" - Rachel Harle, Hawkwell
"i would definitely recommend to learn to drive with alan. Brilliant instructor. i managed to pass first time last week! thanks again" - Emily Leverington, Hockley
"alan is a great to learn with, i passed first time with him. He managed to explain each maneuver so that i could understand them easier, i enjoyed every lesson and recommend him to any new drivers in the hockley and rayleigh area" - Craig Vile, Hawkwell
"Even as a North American with nearly 7 years of previous driving experience I understood that I would need lessons to prepare for the practical driving exam. Over the course of our sessions Alan's manner of teaching and focus directly reflected the content and style of the exam. His advise and instruction is based on years of experience as an instructor but also driving a wide variety of vehicles and industries. Moreover his natural love of teaching, seemingly endless patience and eagerness for conversation create a comfortable learning environment.
Most impressively driving with Alan not only allowed me to pass my exam but also made me into a much better driver. Without exaggeration since finishing my driving lessons I have consistently been complimented on my driving by family and friends. Previously I would never have thought to take driving lessons unless I needed to pass the exam but now I can say that anyone who is looking to simply improve their driving, become more comfortable and safe on the road would do well to spend some time with Alan. Many thanks!" - Jacob, Rayleigh
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"Before I started my driving lessons with Alan, I had someone else, who I didn't really learn anything from. When I started with Alan, he taught me how to pull away very easily! He makes you feel comfortable when you're driving. He teaches you all the manoeuvres in a simple way so they're very easy and quick to learn" - Nicola Skeels, Hockley
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"Alan is calm, patient, reliable, and good at explaining things and easy to talk to." - Karen Benton, Rayleigh