The phrase "a map on how" is correct and usable in written English.
It can be used when describing a guide or a set of instructions for achieving a specific goal or understanding a process.
Example: "The book provides a map on how to navigate the complexities of modern technology."
Alternatives: "a guide on how" or "a blueprint for how".
"The idea of the meeting was to get an agreement or a road map on how to deal with opposition forces and save the Syrian people," Mr. Lavrov told a news conference.
"This is a cosmic map on how to be a human being, in relationship to the other beings on Earth.
Rules-based regulation can actually give bankers a road map on how to avoid the rules.Going a step further, Sam Peltzman, a former colleague of Friedman and professor emeritus at Chicago's Booth School of Business, thinks most regulation is futile.
His projection is remarkably detailed — by clicking on a map one can see how many cases a rural county in North Dakota can expect in two weeks versus how many Queens County in New York City can expect.
I think that the prosecution here gave every prosecutor across the country a road map on how to put together a case, how to present it to the jury and how to get a guilty verdict.
Pointing to the Western Isle of Iona on a map, one tourist asked: "How do I get to one zero NA?" Going from the daft to the ridiculous: "Can you tell me where the mountain is in Scotland?", "Are there any curves in the roads here, or are they all straight?", and "Are there any Sheena Easton museums in Glasgow?".
On Wednesday night, Mr. Clinton offered Mr. Obama a road map on how to present that choice, and Mr. Obama is not too proud to take such advice from the last Democratic president.
"It is important that developing countries, especially those that are poor and vulnerable, are presented with a road map on how this commitment on long-term financing will be met," Mr. Ban said.
The review aims to assist researcher and engineers to gain fundamental understandings of MEC, and it also provides several future research directions and a road map on how to overcome the barriers, so the MEC technology can be further advanced and applied in larger scale.
You do not need to have a detailed map on how to get to where you want to be, but you need to have a reasonable idea.
