Mill Hill Broadway Capacity Improvement

Transcription

1 1 16 MARCH 2016 Mill Hill Broadway Capacity Improvement Presentation to Barnet Members and Mill Hill Residents Association

2 2 Background A1 is one of 23 Transport for London Road Network (TLRN) Strategic Corridors A1/A41 Apex to Five Ways has low Journey Time Reliability Mill Hill Circus is a pinch-point TfL has implemented a number of schemes within this section Road marking Signing and UTC SCOOT Main Issues Collision record Long queues observed Poor driver behaviour observed Flooding on the observed.

3 3 Collision Study Personal Injury Collisions 21 PICs occurred at the roundabout in 36 months which equates to 7 PIC per year. (Barnet average for a roundabout 2.92 a year) 21 PICs No fatality, 2 serious and 19 resulted in slight injuries. Recommendation To investigate the feasibility to improve capacity and resilience at Mill Hill Circus Collision Type Occurrence in 36 month study period Average per year Pedestrian Pedal Cycle P2W Car Bus or coach 0 - Goods vehicle 3 1

4 4 TfL Principal Outcomes To improve journey time reliability via improved junction and network performance to meet the following TfL Surface Transport Principal Outcomes Principal Outcomes Reliable Roads Quality Bus network Reduced casualties Commentary Ensuring a reliable and resilient road network for all of London by managing congestion and improving connectivity. Changes to the road layout will improve the integrity of the infrastructure and manage congestion to ensure a reliable and resilient road network. Maintaining and enhancing a reliable, safe, accessible bus network and supporting coach operations, across all of London Improving journey times and efficient routes to maintaining a reliable, safe and accessible bus network. Continuing the downward trend in casualties on London s roads and public transport networks Mill Hill Circus has a history of high number of road traffic collisions; particularly shunts by vehicle queuing or changing lanes.

5 5 Options Considered Cross Road & Signal options Pedestrian Facilities The Broadway Showed that large queues would form on all arms Reducing the size of the central island Impact on Safety on internal movements Insert a pull-out fact or statement here 18pt Light Turbo Style Roundabout Likely to lead to increased speeds through the roundabout with an associated increase in collisions

6 6 Preferred Option

7 7 Additional Lanes Land Required A section of land is required from the north eastern side of the roundabout Approximately 315m 2 Up to 8m at its widest point Inclusive of a 1m working zone.

8 8 Additional Lanes Land Required A section of land is required from the north eastern side of the roundabout Approximately 315m 2 Up to 8m at its widest point Inclusive of a 1m working zone.

9 9 Journey Time Results AM Peak Model (PM not modelled but results are expected to be similar) Initial results are favourable on the A1 Capacity neutral on adjoining routes Journey Time Changes between Five Ways and Mill Hill Circus Time period Time period 07:30 to 08:30 08:30 to 09:30 07:30 to 08:30 08:30 to 09:30 Base Future Base Future Change % change Change % change Five Ways to Mill Hill (NW Bound) % 9 7% Mill Hill to Five Ways (SE Bound) % 0 0% Journey Time Changes between Mill Hill Circus and Apex Corner Time period Time period 07:30 to 08:30 08:30 to 09:30 07:30 to 08:30 08:30 to 09:30 Base Future Base Future Change % change Change % change Mill Hill to Apex Corner (NW Bound) % % Apex Corner to Mill Hill (SE Bound) % %

10 10 Summary A1 is one of 23 Transport for London Road Network (TLRN) Strategic Corridors A1 at Mill Hill Circus is a pinch-point Has a higher then expect number of collision A1/A41 Apex to Five Ways has low Journey Time Reliability Long queues observed Poor driver behaviour observed

11 11 Questions

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