a21topea-doc

Created < 29/02/2012, Changed; 08/05/2014, 30-09-2017 - Was a word document
 

A21 Tonbridge BP-Pembury BP   {A Lohmann  09-07-00}

196 scheme - 3.9km D3 off-line improvement

Cost £21m

                                                                                                                                                                               

PROBLEMS

Significant delays, including slow-moving southbound vehicles up Castle Hill {entering Tunbridge Wells}. {Perceived} Accident black spot on bend [is not supported by crash statistics}. {25,000} vpd {GOSE 1997} on single carriageway road between two dual sections. Also limited junction capacity {helps to moderate flow in to Tunbridge Wells via Longfield road}. Problems worse in summer route to south coast. {There are delays AM on Pembury (A264) and s very modest delay on Longfield Roads with traffic leaving A21 and queuing to enter Tunbridge Wells}

 

OTHER OPTIONS

{Rail line to Hastings and Brighton could be developed with rail sidings at Longfield road, Good Station Road - other schemes include a road tunnelled through Castle Hill which would address the existing and admitted new substandard bend} on-line improvements (e.g. climbing lane) considered On-line improvements would not necessarily require property demolition.

 

CRITERIA

SUB-CRITERIA

QUALITATIVE IMPACTS

QUANTITATIVE MEASURE

ASSESSMENT

ENVIRONMENTAL

IMPACT

 

 

CO2

tonnes added

0 - 2000

Noise

 

 

 

Local air quality

 

 

 

Landscape

 

Biodiversity

 

Heritage

 

 

 

Water

Scheme moves traffic further from properties adjacent to existing road. {But increase traffic in to Tunbridge Wells through residential areas such as Sherwood - The D3 scheme forms part of the rim of a bowl with North Tunbridge Wells, High Brooms and Southborough noise from the road may cause nuisance}

 

{increased} congestion {in residential areas} will  {reduce} air quality.  

               

 

 

Highly intrusive in undisturbed landscape of High Weald AONB    

 

Ancient {and} semi-natural woodland & great crested newts may be affected. {Nightingales would be disturbed}

 

No known impacts, but area of archaeological potential. Setting of scheduled hill fort would be affected adversely. {Though no study was considered necessary at public inquiry this aspect should be reviewed in the light of the settlement being possibly bronze age and used subsequently in Arthurian times. Archaeological damage along the whole route - admitted by a KCC officer}

 

Even with mitigation, there may still be a significant risk of polluting a sensitive aquifer during both construction and operation; and an impact on land drainage.

No. properties experiencing (W/S):

- Increase in noise                {much}

- Decrease in noise                14

 

No. properties experiencing:

- improved air quality    16

- worse air quality                       {many}

 

-

 

{environmental study to be done}

 

 

-

 

 

 

-

net {many} properties {lose} with scheme

 

{needs to be reconsidered}

 

 

Large -ve

 

{depends on study}

 

 

{should be reassessed}

 

 

 

Moderate -ve

SAFETY

-

Bypassing of Little Hill bend accident black spot and general improvement to road's horizontal and vertical alignment would improve safety. {Is this true? - the new fast D3 road also has a substandard bend. Note one fatality in 5 years autumn 1994 to 1999 due to pedestrian walking in a way contrary to the Highway Code}

{safety is likely to be reduced due to grater speeds and increased traffic through residential areas}

{COBA9 analysis superseded}

ECONOMY

Journey times & VOCs

 

 

Cost        

 

Reliability

 

Regeneration

Removal of pinch-point between dual carriageways and elimination of Castle Hill stretch of existing road (slow lorries uphill {A crawler lane on the exist route may suffice}) will {but would have no effect on} journey times. {Dualling would have no bearing on traffic into Tunbridge Wells. The bottleneck is on the A264 Pembury Road entering Tunbridge Wells}

-

 

{no change because no matter how many lanes were built traffic congestion would remain unchanged due to cues of traffic tailing out of Tunbridge Wells on the A264 Pembury Road}

{use for local traffic mainly - traffic drops to 5000 vpd at Battle therefore probably much fewer travel between Hastings and Tunbridge Wells or beyond. Neutral effect on} access to regeneration priority area of Hastings {rail for freight alternative may have by comparison a positive impact}

-

 

 

-

 

Route stress

Before 178%; After 45%.

 

Serves regeneration area?

Development depends on scheme?

{Ditto}

 

 

{ditto}

 

{-ve}

 

 

{no}

-

ACCESSIBILITY

Public transport

 

Severance

 

Pedestrian and others

{public transport has not been incorporated in to the scheme - used by one bus service at present}

 

{no long term relief to A26 of traffic could increase traffic on Longfield Road and Pembury Road A264 in to Tunbridge Wells - Only 14% traffic use pass through Tunbridge Wells}

{No improvement long-term on A26, A21 completely unsafe for pedestrian use (note bicycle access is very important particularly for workers at Pembury Hospital) - no footway, no crossings, or for equestrian}

-

 

-

 

-

{needs consideration}

 

{-}ve

 

{neutral}

INTEGRATION

-

Assists strategic role of A21 Large area of residential development identified in Local Plan NE of Tunbridge Wells dependent on {transportation} corridor. Contrary to Regional Plan policy on affecting AONB. {Traffic from A21 has serious negative effect on residential area adjacent. No integration with other measures}

-

{NEGATIVE - IMPORTANT}

 

COBA

{note bracketed italic notes are my alterations to the GOSE original document}

{requires reassessment under SACTRA}

 

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