A four-year-old boy's died after being hit by a car outside a sports centre in Thame.
Royal Ascot 2012
New traffic measures are being introduced to keep things moving around the racecourse this week.
300,000 people are expected at the event this week, including The Queen and other members of the Royal family.
To deal with the large volume of cars and coaches attending, temporary traffic regulations will be bought in, including a one-way traffic system around Ascot racecourse at specified times.
Superintendent Andy Standen, who will be the senior police commander at the event, said:
"Thames Valley Police is proud to be policing this annual event, which attracts around 300,000 racegoers over the week and is attended by Her Majesty the Queen and other senior members of the Royal Family.
"It is a particularly special event with it also being the Jubilee and Olympics year.
"A lot of preparation has gone into making sure that the event passes off as smoothly as possible, working in partnership with Ascot Racecourse Limited, the Royal Borough of Windsor and Maidenhead and neighbouring police forces.
"To assist with the organisers' traffic management plan this year, the usual drop off lay-by for racegoers has been moved from Ascot High Street to car park 4 in Station Hill, which will be signposted.
"There will also be no waiting or u-turns allowed in the High Street."
Russell Lee died following hit and run as he crossed London Road last month.
A man from Wallingford is fighting to get his wife a visa so she can be with him and their son in Oxfordshire.
A family tribute has been paid to an oxford university student who died during a Varsity ski trip in France.
Recently Played Tracks
To listen live, choose your preferred location:
Deposit £10 to get a £40 Welcome Bonus - That's £50 to play bingo, slots and more!*
Over 50 tracks to make you feel-good. New album out now...
Find your local four day weather report here.
Make Heart the soundtrack to your day and you could be a winner with great prizes up for grabs throughout the day.