It sounds like you want a privacy screen and a sound barrier now rather than five years from now when any plantings will have a chance to fill in. Unless you have a large budget and can buy large caliber specimens a fence will provide the most effective solution.
Let's do some rough calculations which do not account for local pricing and should only be taken as an indication.
Assume you have a forty foot length you wish to shield. The white pine, Pinus strobus is commonly available and less expensive than some alternatives. It is about twenty feet wide at maturity but if you bring in large specimens that have a burlapped root ball in a wire basket they will sit for a number of years while they make themselves at home.
The largest size I see available is 400 cm tall (about thirteen feet) in a wire basket. So with four trees in two staggered rows plus some heavy machinery you have the job done in a day or so. However this could easily cost $1000 to $1500 a tree installed for a price of $6000. Also, at maturity the four trees occupy an area about thirty feet wide.
Compare this to just one of your local fencing suppliers, of which New Jersey seems to have in abundance. Vinyl fence in eight foot sections that is six feet tall can probably be installed for $300 per section. You need five sections for a cost of about $1500 to $2000.
This same price differential between trees and fences is true in most parts of the world. There is always a tradeoff between time, money and usefulness. You can put small trees in and it won't cost much but you won't have privacy or a sound barrier for five years or more. Or you can put large trees in but it will cost much more.
The optimum solution is put a fence in yourself using pre built panels and take the money you save to plant some small trees outside the fence.
Please provide some more information on your local soil types and whether you want an evergreen or a tree with leaves and we can work some more on this.
