SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D/A

(Rule 13d-1(e))

Under the Securities Exchange Act of 1934

(Amendment No. 7)

YRC WORLDWIDE INC.

(Name of Issuer)

Common Stock, par value $0.01 per share

(Title of Class of Securities)

984249607

(CUSIP Number)

Eric Ross

Senior Managing Director and Chief Compliance Officer

Avenue Capital Group

399 Park Avenue, 6^th Floor

New York, NY 10022

(212) 850-3500

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

August 6, 2015

(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D/A, and is filing this schedule because of §§240.13d-l(e), 240.13d-l(f) or 240.13d-l(g), check the following box.  ¨

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See §240.13d-7 for other parties to whom copies are to be sent.

The information required on this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liabilities of that section of the Exchange Act but shall be subject to all other provisions of the Exchange Act (however, see the Notes).

Explanatory Note

This Amendment No. 7 to Schedule 13D (“Amendment No. 7”) is being filed by the Reporting Persons (as defined below) to amend the Items specified below in the Reporting Persons’ Schedule 13D with respect to YRC Worldwide, Inc., a Delaware corporation (the “Issuer”), filed with the Securities and Exchange Commission on December 19, 2013 (the “Original Schedule 13D”), as amended by Amendment No. 1 to the Original Schedule 13D, filed with the Securities and Exchange Commission on December 24, 2013 (“Amendment No. 1”), Amendment No. 2, filed with the Securities and Exchange Commission on January 27, 2014 (“Amendment No. 2”), Amendment No. 3, filed with the Securities and Exchange Commission on February 4, 2014 (“Amendment No. 3”), Amendment No. 4, filed with the Securities and Exchange Commission on March 18, 2014 (“Amendment No. 4”), Amendment No. 5, filed with the Securities and Exchange Commission on August 8, 2014 (“Amendment No. 5”), and Amendment No. 6, filed with the Securities and Exchange Commission on March 31, 2015 (“Amendment No. 6 and, together with Amendment No. 1 through Amendment No. 5 and the Original Schedule 13D, the “Amended Schedule 13D”). Capitalized terms used in this Amendment No. 7 but not defined herein shall have the respective meanings given to such terms in the Amended Schedule 13D.

The disclosure in Item 5 is hereby amended and restated in its entirety as follows:

(a) As of the date hereof, the following is the beneficial ownership and percentage of the Issuer’s Common Stock outstanding for each of the persons named below:

The approximate percentages of Common Stock reported as beneficially owned by the Reporting Persons are based upon 32,752,921 shares of Common Stock outstanding as of July 24, 2015, as disclosed by the Issuer in the Issuer’s Quarterly Report on Form 10-Q filed on July 30, 2015, and calculated in accordance with Rule 13d-3(d)(1) of the Exchange Act.

(b) The Reporting Persons have shared power to vote or direct the vote and shared power to dispose or to direct the disposition of the shares.

(c) See Item 6.

(d) No person other than the Reporting Persons is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the shares of Common Stock covered by this Schedule 13D.

(e) Following the transactions described in Item 6 hereto, Avenue Partners ceased to be the beneficial owner of more than five percent of the shares of Common Stock and are no longer subject to the reporting requirements of Rule 13D-1(a) of the Exchange Act.

Item 6 is hereby amended and supplemented to add the following at the end thereof:

On August 6, 2015, Avenue Investments, Avenue International, MAP-10, Avenue PPF Opportunities and Avenue EnTrust SPC (collectively, the “Selling Avenue Funds”) and UBS Securities LLC (“Buyer”) entered into a secondary block trade agreement (the “Agreement”), pursuant to which the Selling Avenue Funds sold an aggregate of 1,400,000 shares of Common Stock to Buyer for $19.71 per share. The sale is expected to close on or about August 11, 2015 (the “Closing Date”). The Selling Avenue Funds agreed not to offer, issue, sell or otherwise dispose of (or announce an intention of doing so), without the prior written consent of the Buyer, any other shares of the Issuer or securities convertible or exchangeable or carrying rights to acquire shares for a period of thirty (30) days following the Closing Date.

The summary of the Agreement is not a complete description and is qualified in its entirety by reference to the full terms of the Agreement, filed as Exhibit 1 to this Amendment No. 7 and incorporated herein by reference.

SIGNATURE

After reasonable inquiry and to the best of our knowledge and belief, we certify that the information set forth in this Statement is true, complete and correct.

Dated: August 7, 2015