• Reference: 2025/1541
• Question by: Hina Bokhari OBE
• Meeting date: 22 May 2025

Given that a significant number of the fire incidents associated with lithium-ion batteries in E-bikes are a result of conversion kits, what steps are you taking to feed into the Product Safety and Metrology Bill in order to bring clearer regulations to reduce fire risks in London?

• Reference: 2025/1540
• Question by: Hina Bokhari OBE
• Meeting date: 22 May 2025

When do you expect to have enough data from the variable speed trial on the area of Northern line track between Camden Town and Tuffnell Park to fully understand the effectiveness of rolling out variable speeds more widely? How will this information be shared?

• Reference: 2025/1539
• Question by: Hina Bokhari OBE
• Meeting date: 22 May 2025

In 2025, the Chief Operating Officer of TfL wrote to the London Assembly’s Transport Committee saying that there are 12 sites currently undergoing installation works and a further 12 listed to begin installation in 2025. Can you provide the exact details of these locations? Can you also provide information regarding how these sites were prioritised?

• Reference: 2025/1538
• Question by: Hina Bokhari OBE
• Meeting date: 22 May 2025

Can you provide a breakdown by borough, Tube line and approximate date of installation of all locations at which you expect Delkor fastenings to be installed between the present day and January 2030?

• Reference: 2025/1537
• Question by: Hina Bokhari OBE
• Meeting date: 22 May 2025

In response to Mayoral Question 2025/0452, you said that Delkor fastenings had been installed at 77 locations across the Underground network, can you provide a breakdown of these locations by borough, Tube line and date of installation?

• Reference: 2025/1536
• Question by: Hina Bokhari OBE
• Meeting date: 22 May 2025

Can you provide a quantitative overview of the impact that the installation of Delkor fastenings has on Tube noise as it is experienced by those occupying houses above ground, over Tube lines?

• Reference: 2025/1535
• Question by: Hina Bokhari OBE
• Meeting date: 22 May 2025

Can you provide any data that TfL has collected via recent trials regarding the relationship between carriage speed and Tube noise produced on TfL’s Underground lines, particularly for those occupying houses above ground?

• Reference: 2025/1534
• Question by: Hina Bokhari OBE
• Meeting date: 22 May 2025

Can you provide a detailed explanation as to TfL’s exact policies with regard to tackling Tube noise, as well as how each instance/complaint is examined and prioritised?

• Reference: 2025/1533
• Question by: Hina Bokhari OBE
• Meeting date: 22 May 2025

Can you provide a breakdown of the number of complaints received by TfL relating to Tube noise, by borough and month, between January 2023 and the present day?

• Reference: 2025/1532
• Question by: Hina Bokhari OBE
• Meeting date: 22 May 2025

Can you provide a detailed breakdown of any and all work that has taken place in South Wimbledon to tackle persistent noise pollution affecting residents living above the Northern line between January 2023 and the present day?