WASHINGTON — On a famous boulevard during a hectic Inauguration Day, many of the differences between incoming President Donald Trump and his more traditional predecessors will be laid bare.

The presidential inaugural parade on Pennsylvania Avenue, one of the main attractions of the day, will be shorter and less diverse than President Obama’s inaugural parades, according to a review of planned participants by the Globe. It also will include no representatives from New England for the first time in recent memory.

The makeup and size of the parade are just two of the many ways America’s divide over Trump’s election will be reflected in the inauguration and activities surrounding it. Authorities are planning for up to 900,000 people to converge on the capital Friday, many to take in the pomp and circumstance, while hundreds of thousands plan to noisily register their disapproval over the course of both Friday and Saturday.

In Obama’s second inaugural parade in 2013, there was participation from all 50 states and Washington, D.C., including seven groups from New England. Among them were the Boston College marching band, a high school from Londonderry, N.H., and members of the historic, all-black 54th Massachusetts Volunteer Infantry Regiment. Obama’s parade also highlighted minority groups from throughout the country, including Native American dancers from Alaska, a drill team from south Chicago, and a Chinese-American dance troupe from Delaware.

Based on the Globe’s review, Trump’s parade will feature representatives from 20 states and has no participants from New England. This year’s parade will also feature a higher percentage of law enforcement groups, and the overall makeup of the participants will mirror the largely white electorate that voted Trump into office.

One school performing in Trump’s parade, West Monroe High School from Louisiana, was recently embroiled in controversy because, according to local reports, the school continues to permit a Confederate flag to be flown at sporting events.

Trump’s parade will also be significantly shorter, featuring about 20 fewer marching groups than Obama’s 2013 parade, which featured more than 60 performers.

“You’ve had previous parades that are three or four hours long. This is going to be a shorter parade, an hour to hour and a half or so so he can go to work,’’ Boris Epshteyn, director of communications for the Presidential Inaugural Committee, told Breitbart News.

Trump is “not going to sit there for hours . . . he’s going to have a shortened parade and he’s going to go into the White House and get some work done before he goes to the balls,’’ Epshteyn said.

His statement that Trump shortened the parade so he could begin working on policy conflicts with a recent comment made by Trump himself.

In an interview with the Times of London, Trump said he did not plan to begin working until Monday — two days after his inauguration.

“My day one is gonna be Monday because I don’t want to be signing and get it mixed up with lots of celebration,’’ Trump said, according to a transcript of the interview.

There are other reasons for the change in parade structure. Some longtime performers, including several high schools from the greater D.C. area, have declined to apply for consideration this year, angered by Trump’s inflammatory language during the 2016 campaign. For the groups that did agree to perform, the few coming from black or Hispanic communities have faced criticism.

Talladega College, Alabama’s oldest historically black college and the only African-American group represented in the parade, decided to perform in the inaugural parade after weeks of intense deliberation.

“As many of those who chose to participate in the parade have said, we feel the inauguration of a new president is not a political event but a civil ceremony celebrating the transfer of power,’’ Billy Hawkins, the college’s president, said in a statement.

Throughout the city, protesters are expected to equal, or even outnumber, the Trump supporters. Demonstrations are expected Friday, during the inauguration itself, and on Saturday at a Women’s March on Washington that organizers expect to attract more than 200,000 people.

More than 40 Democratic members of Congress have decided to break tradition and not attend the swearing-in, including Representative Katherine Clark of Massachusetts.

A spokesman for the Massachusetts Republican Party said the office received more than 500 requests for tickets, and that a host of Republican state legislators and national committee members from the Bay State will be in attendance at Friday’s ceremony.

MassGOP chairwoman Kirsten Hughes, who will be traveling to Washington this week, said Trump’s candidacy has inspired a new collection of faces to get excited about politics, which will be reflected in the inauguration’s crowd.

“There’s a clear enthusiasm about this week’s ceremonies — from these newly engaged voters to longtime activists and elected officials, everyone is looking forward to turning the page on the Obama era,’’ Hughes said.

JR Romano, chairman of the Connecticut GOP, said he was confident that New England will be well represented at Trump’s inauguration. Romano, who is traveling to the inauguration, said his state’s Republican Party office received about 6,000 requests for inauguration tickets.

“I think everyone is really energized and excited,’’ Romano said, dismissing the idea that protestors might dampen the festivities. “It’s unfortunate that [Democrats] can’t accept the fact that they lost,’’ he said.

Until Trump was elected, Mayor Kim Driscoll of Salem had planned to take her daughters to this year’s ceremony, continuing a tradition they began in 2009.

Instead, she will join with thousands of women voicing their objections to Trump’s policies and his history of misogynistic comments.

Driscoll is driving to Washington with her two daughters, her sister-in-law, and a family friend. Driscoll said the women, who range in age from 15 to 65, feel “under assault’’ by Trump’s rhetoric, his Cabinet appointees, and the prospect of Planned Parenthood and other women’s health organizations being stripped of federal funding.

“A great deal of anxiety exists,’’ Driscoll said. “You’re hoping to see history in one way, but now you’re going to ensure that all the work that has been done over the past few decades is protected.’’

In liberal Massachusetts, some members of the congressional delegation said they are fielding fewer requests for tickets to Trump’s inauguration. A spokesman for Representative Richard Neal’s office said the demand for tickets has been lower than the previous inaugurations. Aides in Representative Seth Moulton’s office said they have received 131 requests for 177 tickets, although some of those people requested more than one ticket.

As of Tuesday, Washington officials said 1,200 buses — the maximum amount — applied for parking at RFK Stadium for Saturday’s march compared with approximately 200 buses for Friday’s ceremony.

The data could signal a lack of enthusiasm for the swearing-in of a historically unpopular president, yet Trump has repeatedly promised an occasion unlike any other.

“Inauguration Day is turning out to be even bigger than expected,’’ he tweeted recently.

Like Driscoll, Edward Daniels, a District of Columbia deejay and business owner who performed during Obama’s two inaugurations, is one of those protesting. Daniels, who supported Hillary Clinton during the election, created a “pep rally’’ for the Saturday women’s march. More than 400 people bought tickets to the event and there is a waitlist of 80 people, Daniels said.

Daniels said, “I was definitely looking forward to celebrate a history-making night,’’ meaning he’d rather be having a party for Clinton’s swearing-in.

However, for Trump supporters, this is their history-making night, the dawn of a president and an unconventional administration that have promised to disrupt the American political system.

Trump has done nothing to temper such expectations.

“For many years our country has been divided, angry and untrusting,’’ he said on Twitter this week. “Many say it will never change, the hatred is too deep. IT WILL CHANGE!!!!’’

Tyler Pager can be reached at tyler.pager@globe.com. Astead W. Herndon can be reached at astead.herndon@globe.com. Follow him on Twitter @AsteadWH.