    <SEC-DOCUMENT>0001140361-20-007928-index.html : 20200403
    <SEC-HEADER>0001140361-20-007928.hdr.sgml : 20200403
    <ACCEPTANCE-DATETIME>20200403124444
    ACCESSION NUMBER:		0001140361-20-007928
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		11
    CONFORMED PERIOD OF REPORT:	20200504
    FILED AS OF DATE:		20200403
    DATE AS OF CHANGE:		20200403
    EFFECTIVENESS DATE:		20200403

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			TRINITY INDUSTRIES INC
    		CENTRAL INDEX KEY:			0000099780
    		STANDARD INDUSTRIAL CLASSIFICATION:	RAILROAD EQUIPMENT [3743]
    		IRS NUMBER:				750225040
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-06903
    		FILM NUMBER:		20772440

    	BUSINESS ADDRESS:
    		STREET 1:		2525 STEMMONS FREEWAY
    		CITY:			DALLAS
    		STATE:			TX
    		ZIP:			75207-2401
    		BUSINESS PHONE:		214-631-4420

    	MAIL ADDRESS:
    		STREET 1:		2525 N STEMMONS FREEWAY
    		CITY:			DALLAS
    		STATE:			TX
    		ZIP:			75207

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	TRINITY STEEL CO INC
    		DATE OF NAME CHANGE:	19720407
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>nc10007697x1_def14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: nc10007697x1_def14a.htm

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    <SEQUENCE>2
    <FILENAME>frontier_ex.jpg
    <TEXT>
    Document 2 - file: frontier_ex.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>logo_trinity2.jpg
    <TEXT>
    Document 3 - file: logo_trinity2.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>logo_trinitygraphic.jpg
    <TEXT>
    Document 4 - file: logo_trinitygraphic.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>5
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    <TEXT>
    Document 5 - file: nc10006797x1_barchart1.jpg

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    <TEXT>
    Document 6 - file: nc10006797x1_barchart2.jpg

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    <SEQUENCE>7
    <FILENAME>nc10006797x1_barchart3.jpg
    <TEXT>
    Document 7 - file: nc10006797x1_barchart3.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>nc10006797x1_piechart1.jpg
    <TEXT>
    Document 8 - file: nc10006797x1_piechart1.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>nc10007697x1_proxycard01.jpg
    <TEXT>
    Document 9 - file: nc10007697x1_proxycard01.jpg

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    <SEQUENCE>10
    <FILENAME>nc10007697x1_proxycard02.jpg
    <TEXT>
    Document 10 - file: nc10007697x1_proxycard02.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>sig_jrichardson.jpg
    <TEXT>
    Document 11 - file: sig_jrichardson.jpg

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