Jason J. Siwula, PE – Safety Engineer

HSIP HORIZONTAL ALIGNMENT SIGNING

Horizontal Alignment Signing Initiative

Systemic Approach to installing Horizontal Alignment Signage (HAS)

Install HAS utilizing fluorescent yellow sheeting along the entire corridor where one RD Plan “enhanced” curve is located for consistency and uniformity

Target approximately 25% of the state maintained system over the five year implementation schedule

HSIP Signage CorridorsPhase 1 (mi) Phase 2 (mi) Phase 3 (mi) Phase 4 (mi) Phase 5 (mi) Totals (mi)

District 1 85.598 88.406 86.021 90.357 106.058 456.440District 2 101.510 105.830 107.518 105.608 114.239 534.705District 3 106.779 102.474 99.990 102.915 101.938 514.096District 4 116.392 118.597 121.106 143.884 123.153 623.132District 5 87.807 83.496 83.605 86.373 84.213 425.494District 6 154.051 158.707 151.167 151.638 94.673 710.236District 7 188.805 168.010 173.733 180.506 201.535 912.589District 8 85.894 90.882 93.971 93.854 98.987 463.588District 9 93.970 91.551 97.083 99.393 82.237 464.234

District 10 111.431 112.999 118.094 115.837 95.508 553.869District 11 94.704 99.324 127.069 119.111 104.197 544.405District 12 127.136 139.618 132.801 140.867 137.102 677.524

Grand Total: 6880.312

Why Horizontal Alignment Signs?

Reduction in Lane Departure crashes

2009 MUTCD Signing Changes

2009 MUTCD Compliance Date

Driver expectation

Benefit / Cost

Source: http://cmfclearinghouse.org

Crash Modification Factors for Fluorescent Curve Signs

Examples of Signage Updates

Previously Existing Signing

2009 MUTCD Signing Update

Many of the 2009 MUTCD Compliance Dates have been revised or eliminated, however, the compliance date for Horizontal Alignment Signing remains in place.

MUTCD Compliance Date – December 31, 2019

Driver Expectations Along a Corridor

Click icon to add picture

Driver Expectations Along a Corridor

Click icon to add picture

Driver Expectations Along a Corridor

Click icon to add picture

Driver Expectations Along a Corridor

Click icon to add picture

Driver Expectations Along a Corridor

Click icon to add picture

Driver Expectations Along a Corridor

Click icon to add picture

Driver Expectations Along a Corridor

Click icon to add picture

Bottom line – Many sites can be implemented with a relatively low cost for a significant benefit!*B/C Source: FHWA-HRT-09-045

Benefit / Cost Ratio between 8.6-102.3

All CT WA0

20

40

60

80

100

120

B/C (min)B/C (max)

A New Approach Contract with a consultant to

supplement Traffic Engineering functions Ball Bank Indications Setting of advisory speeds Approximate sign placement Quantities for letting projects

Selected Consultants

Example Signing LayoutsNon-Enhanced Curves or Turns

Enhanced Curves or Turns

Current Status Contracts with all consultants have been

authorized 11/26/2012

Horizontal Alignment Signing / Ball Bank Training Class (1st scheduled for December 18, 2012)

“Boots on the ground” starting near the first of the year

Next Steps Review initial corridor submissions from each

consultant Meet with the Districts to discuss implementation

through the Construction Procurement process (inspection, quality control, etc.)

Let construction contract(s) for several corridors to ensure the quality of the end product

Adjust the process as necessary for implementation and complete Phase 1 and Phase 2.

Questions?