Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Trafficmaster Plc

2. Reason for the notification (please tick the appropriate box or boxes)

An acquisition or disposal of voting rights 

X

An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An event changing the breakdown of voting rights

Other (please specify): Transitional notification of holdings

3. Full name of person(s) subject to the notification obligation:

Barclays PLC

4. Full name of shareholder(s) (if different from 3.):

Barclays Bank PLC

Barclays Stockbrokers Ltd

Gerrard Investment Management Ltd

5. Date of the transaction (and date on which the threshold is crossed or reached if different):

20-Aug-08

6. Date on which issuer notified:

21-Aug-08

7. Threshold(s) that is/are crossed or reached:

7% to 8%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares 

 if possible using the ISIN CODE

Situation previous to the Triggering transaction 

Resulting situation after the triggering transaction

Number of Shares 

Number of Voting Rights

Number of shares 

Number of voting rights

% of voting rights

Direct

Direct

Indirect

Direct

Indirect

GB0007215949

10,848,895

10,848,895

10,994,104

0

10,994,104

0.00

8.06

B: Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument 

Expiration date

Exercise/ Conversion Period/ Date 

Number of voting rights that may be acquired if the instrument is exercised/ converted

% of voting rights

Total (A+B)

Number of voting rights

% of voting rights

10,994,104

8.06

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

Barclays Bank PLC

Barclays Stockbrokers Ltd

Gerrard Investment Management Ltd

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

14. Contact name:

Geoff Smith

15. Contact telephone number:

020 7116 2913