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Route Problems & Performance
Initial Draft Strategy - July 2004
Route Problems & Performance
6.1 Problem identification
Performance indicators provide a valuable means of describing the level of service provided by a route, that is:
- the identification of the location and scale of problems
- the potential to assess the change in performance achieved through actions
- the performance of the route and sections of route compared with national or route specific criteria and with each other
- the comparative performance of the route against other routes.
6.2 Performance Framework - existing situation
The calculation of indicators is shown in Appendix E and is based on work carried out under earlier guidelines for RMS studies. While this is no longer a current method of approach, it is considered helpful within the context of the present study. The indicators for safety were calculated using data from 1998-2000. More up-to-date data (2001-2003) has been used to prepare drawing TH/RMSC/E/004. However, the more recent data showed that accidents were occurring in the same locations, although numbers were slightly reduced.
Table 6.2 summarises the automatic traffic counter data for 2001. The table reports the annual average daily total flow (AADT), annual average weekday (Mon-Fri) flow (AAWT), proportion of heavy vehicles in AADT, and the seasonality index (average weekday flow in August : average weekday flow in a neutral month).
With regard to the congestion delay indicators the value for section 2 is at the 'bad' end of the scale, indicating significant delays during peak periods. However the congestion stress factor is at the 'good' end of the scale, indicating that traffic flows are generally low.
| 2001 data used | Route Sections | ||||
|---|---|---|---|---|---|
| 1 - A259 Hastings to Winchelsea | 2 - A259 Winchelsea to Guldeford Lane Corner | 3 - A259 Guldeford lane Corner to Brenzett | 4 - A2070Brenzett to Cloverleaf Junction | 5 - A2070Cloverleaf Junction to M20 | |
| Economy: | |||||
| Congestion | med | bad | good | N/a | N/a |
| Peak average delay per veh-km (sec) | 17 | 47 | 5 | ||
| Congestion | Good | Good | Good | Good | good |
| Stress factor (%) | 32 | 35 | 22 | 46 | 39 |
| Safety: | |||||
| Accident Rate | med | Med | med | Good | bad |
| pia per 100 million veh-km | 32 | 32 | 36 | 16 | 45 |
| Severity Ratio | Med-bad | Med-bad | Med-bad | Med | med |
| ksi/total pia (%) | 37 | 37 | 43 | 22 | 26 |
| Accidents in wet | Good-med | Med | Good-med | Med | med |
| % of accidents | 24 | 41 | 25 | 41 | 33 |
| Accidents in dark | Bad | Med | Med | Med-bad | med |
| % of accidents | 39 | 22 | 25 | 30 | 23 |
| Environment: | |||||
| Noise Exposure | Good | Good | Good | N/a | N/a |
| Noise severity index | 9 | 9 | 1 | N/a | N/a |
| Biodiversity Action Plan | Med | Med | med | N/a | N/a |
| % of section complete | 50 | 50 | 50 | N/a | N/a |
| Landscape Management Plan | Good-med | Good-med | Good-med | N/a | N/a |
| % of section complete | 10 | 10 | 10 | N/a | N/a |
| Traveller Care | Med | med | Med | Med | med |
| Quality of user facilities | 3 | 3 | 3 | 3 | 3 |
| Accessibility: | |||||
| Hindrance to Non-motorised Users | Good-med | Good-med | Good-med | Med | med |
| User need and quality of facilities | 2 | 2 | 2 | 3 | 3 |
| Integration: | |||||
| Opportunities for Interchange | Good | Good | Good | Good | Good |
| User needs and interchange facilities | 1 | 1 | 1 | 1 | 1 |
| Site No | Road | Location | OSGR | AADT | %H Seasonality Index | Stress Factor | ||
|---|---|---|---|---|---|---|---|---|
| Easting | AAWT | |||||||
| Northing | Eastbound | Westbound | 2-way | |||||
| 0575/6 | A259 | Bachelor's Bump | 584481 | 4,884 | 4,701 | 9,585 | 5 | 0.36 |
| North of B2093 (Section 1) | 112596 | 5,012 | 4,824 | 9,836 | 1.15 | |||
| 0417/8 | A259 | West of Icklesham | 586102 | 3,945 | 3,955 | 7,900 | 5 | 0.30 |
| (Section 1) | 116117 | 4,044 | 4,047 | 8,091 | 1.17 | |||
| 0421/2 | A259 | West of Rye | 591648 | 4,652 | 4,519 | 9,171 | 5 | 0.41 |
| (Section 2) | 119148 | 4,757 | 4,599 | 9,356 | 1.23 | |||
| 0423/4 | A259 | Rye | 591980 | 5,010 | 6,529 | 11,539 | 6 | 0.56 |
| South Undercliffe(Section 2) | 120152 | 5,021 | 6,629 | 11,650 | 1.18 | |||
| 0462/3 | A259 | Brookland | 600023 | 2,700 | 2,725 | 5,425 | 7 | 0.22 |
| (Section 3) | 126517 | 2,754 | 2,773 | 5,527 | 1.19 | |||
| 0462/3 | A2070 | Hamstreet Bypass | 600200 | 5239 | 5297 | 10,536 | 3 | 0.46 |
| (Section 4) | 134700 | 5344 | 5454 | 10,798 | 1.09 | |||
6.3 Location of Problems
This section provides a checklist of the problems, under each of the governments key objectives, identified along the route. The locations of these problems are shown on drawing TH/RMSC/E/001.
More up-to-date data than used in table 6.1 has been used to determine the location of safety problems. This accident data (2001-2003) is illustrated on drawing TH/RMSC/E/004.
6.3.1 Economy
- A259 between Hastings and Brenzett (restriction on use by abnormally heavy vehicles, greater than 38 tonnes) - Sections 1-3
- A259 between Winchelsea and Guldeford Lane Corner (average delays exceed 25 sec per veh km) - Section 2
- A259 East Guldeford to Guldeford Lane Corner (difficult for large vehicles to pass and bends) - Section 2
- A259 Rye to Brookland (any roadworks require long diversions to be imposed) - Section 2 & 3
- A2070 / M20 J10 Ashford (queues) - Section 5
6.3.2 Safety
- A259 between Hastings and Brenzett (severity) - Sections 1-3
- A259 Ferry Hill, Winchelsea (180 degree bend presents hazard for long vehicles) - Section 1
- A259 Winchelsea to Guldeford Lane Corner - Section 2
- A259 / Harbour Road, Rye (cluster) - Section 2
- A259 Winchelsea Road - South Undercliffe, Rye (180 degree bend, with mini-roundabout, presents hazard for long vehicles) - Section 2
- A259 East Guldeford (cluster) - Section 2
- A259 / A2070 Brenzett (cluster) - Section 3
- A2070 between Brenzett and Cloverleaf Junction - Section 4
- A2070 Cloverleaf Junction - Section 5 (high number of motorcycle accidents)
- A2070 between Cloverleaf Junction A2042 and M20 (total number of PIA) - Section 5
6.3.3 Environment
- A259 between Rye and Brenzett (proximity to sensitive areas) - Section 2 & 3
- A259 between Guldeford Lane corner and Brenzett (traveller care) - Section 3
- A2070 - No problems identified
6.3.4 Accessibility
- A259 Rye (lack of pedestrian crossing where school children cross) - Section 2
- A259 Brookland (lack of pedestrian crossing where school children cross) - Section 3
- A2070 at Walnut Tree, Snave (poor crossing facilities for pedestrians with no advance warning signs) - Section 4
- A2070 south of Golden Wood, Bromley Green (poor crossing facilities for pedestrians with no advance warning signs) - Section 4
6.3.5 Integration
- Future problems will be generated by the proposed development of Ashford South requiring interchange facilities - Section 5
