Trump arraignment: Private plane, agents, protests expected on journey

Donald Trump will shortly emerge from his Florida home to take a roughly five-hour journey to New York City ahead of his court appearance there.

He faces unspecified charges in connection with a payment his lawyer made to porn star Stormy Daniels before the 2016 election.

The trip will begin as he departs Mar-a-Lago in front of supporters cheering him on. It could end with a more hostile crowd lining the streets of Manhattan.

Here's a more detailed guide on what to expect from each leg of his journey.

The former president is currently at Mar-a-Lago, his sprawling beachfront residence and members-only club in Palm Beach, Florida.

He has said he plans to leave Florida at midday (17:00 BST).

We know the former president will be accompanied by Secret Service agents from the moment he leaves Mar-a-Lago. One official who spoke on condition of anonymity told the Washington Post that "dozens and dozens" of agents would be required to ensure the trip is secure.

He'll likely travel by car to Palm Beach International Airport which is 2.5 miles (4km) from Mar-a-Lago. While that isn't confirmed, he's used the airport many times before and it's about a 15 minute drive. As a former president - and given the large Secret Service presence we know will be in tow - he'll likely travel to the airport as part of a motorcade.

There has been a small number of vocal supporters outside his Florida home for days, and they will no doubt be cheering him on as he heads to the airport.

Mr Trump is reportedly going to fly from Florida to New York's LaGuardia Airport on his private plane - a flight of around three hours. 

The aircraft, which has been dubbed Trump Force One, is a Boeing 757 that he purchased for a reported $100m (£80m) in 2011. 

It has been used as a frequent backdrop for his campaign rallies and was recently refurbished and given a fresh paint job - Trump's name features in large gold lettering.

Its destination, LaGuardia, is in the Queens borough of the city, which is on the other side of the East River from Manhattan. 

The former president, as it happens, has less than positive feelings about LaGuardia. Or at least he did before a multi-billion dollar renovation was completed last year.

"You land at LaGuardia… and you walk into a filthy terminal… and you have broken terrazzo floors and that's all you have," he said of the airport in 2015. 

Step three -  from LaGuardia to Trump Tower

We expect Mr Trump to arrive at LaGuardia late on Tuesday afternoon or perhaps early evening. 

From there, he'll head to Trump Tower in Manhattan, a journey most likely taken by car. It's about a 40-minute drive through Queens, over the East River and then into Manhattan.

Given the fact he's a former president and a large number of Secret Service agents will be travelling with him, we'd expect to see a motorcade of vehicles making the journey. And possibly a police escort complete with flashing lights and sirens.

At Trump Tower he will reportedly meet his legal team before spending the night in his penthouse that spans the top three floors of the skyscraper.

The journey will no doubt be quicker if Trump chooses to fly.

He does own a personal helicopter, and the BBC's US partner CBS understands that it is available to fly him to Manhattan from LaGuardia if he chooses.

Step four - from Trump Tower to court

The former president's journey from Trump Tower to the Manhattan Criminal Courts Building will be a major security operation involving large numbers of police and Secret Service agents.

The journey itself is about a 30 minute drive south through Manhattan - but that time could be much less if there's a full police escort. 

It's not clear if Mr Trump will make remarks to the media before he leaves Trump Tower or when he arrives outside court. Regardless, there will be a huge number of cameras and reporters waiting for him there.

New York police officers will secure the area surrounding the building and nearby roads will be closed off. Street parking will also be suspended for some time.

Mr Trump's path in and out of the building has reportedly been carefully mapped by Secret Service agents who visited the courthouse on Friday to assess the various routes.

Agents and officers will surround him as he enters and leaves in order to separate him from approaching members of the public, an anonymous law enforcement official told the Washington Post.