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Instructores:

Casa Capitular CIAPR Mayaguez

24 de abril de 2012

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Alberto Figueroa Medina, PhD, PE

Catedrático Asociado Dept. de Ingeniería Civil y Agrimensura

UPR-RUM

Celia Tamariz, PE

Supervisora de Área de Proyectos Autoridad de Carreteras y

Transportación de Puerto Rico

Eddie Rivera, PE

Field Operations Team Leader Federal Highway Administration

Puerto Rico Division

AGENDA DEL SEMINARIO 2

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Luego de completado el curso, los participantes podrán:

1. Entender los cambios en formato de la nueva edición del MUTCD 2009.

2. Interpretar los nuevos estándares y guías del MUTCD 2009 relevantes a las zonas de trabajo en carreteras.

3. Entender la aplicabilidad del MUTCD 2009 en Puerto Rico.

4. Conocer las reglas y guías locales y federales asociadas a zonas de trabajo en carreteras.

Resultados 3

1. FHWA, 2009. Manual on Uniform Traffic Control Devices. http://mutcd.fhwa.dot.gov.

2. Presentación por FHWA MUTCD Team: Hari Kalla, Scott Wainwright, Kevin Sylvester, Bruce Friedman, Fred Ranck y Ken Wood. http://mutcd.fhwa.dot.gov.

3. FHWA. Sign Retroreflectivity Toolkit. http://safety.fhwa.dot.gov/roadway_dept/night_visib/retrotoolkit/.

Referencias Principales MUTCD 4

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CAMBIOS A LA INTRODUCCIÓN Y LA PARTE 1 GENERAL DEL MUTCD

Módulo 1

What is a Traffic Control Device? 6

Shall be defined as all

signs, signals, markings, and other devices

used to regulate, warn, or guide traffic,

placed on, over, or adjacent to a street, highway, pedestrian facility, bikeway, or private road open to public travel

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1A.02 Principles of TCDs 7

To be effective, a traffic control device should meet five basic requirements: A. Fulfill a need;

B. Command attention;

C. Convey a clear, simple meaning;

D. Command respect from road users; and

E. Give adequate time for proper response.

Design, placement, operation, maintenance, and uniformity

Vehicle speed carefully considered as an element that governs the design, operation, placement, and location of various traffic control devices.

Manual on Uniform Traffic Control Devices

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The MUTCD shall be recognized as the national standard for traffic control devices Incorporated by reference in Title 23

CFR 655 F

In accordance with 23 U.S.C. 109(d) and 402(a) in each State shall be in substantial conformance with the Standards issued or endorsed by the FHWA.

Final Rule Published in the Federal Register on December 16, 2009 (effective date: January 15, 2010)

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MUTCD applies to private roads that are “open to public travel”

Toll roads and roads within shopping

centers, airports, sports arenas, theme

parks, and similar business or recreation

facilities that are privately owned, but the

public is allowed to travel without access

restrictions

Parking areas and their driving aisles are not subject to MUTCD requirements

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Compliance Dates

New installations, replacements, rebuilds – must comply immediately

Table I-2 with specific compliance dates to retrofit or replace existing devices to meet 11 of the new Standards in the 2009 MUTCD

Section 1A.13 – Meanings of text headings

Standard —statement of required, mandatory, or specifically prohibitive practice regarding a TCD. All Standard statements are labeled, and the text appears in

bold type. The verb “shall” is typically used. Standard statements shall not be modified or compromised

based on engineering judgment or engineering study.

Guidance — statement of recommended, but not mandatory, practice in typical situations, with deviations allowed if engineering judgment or engineering study indicates the deviation to be appropriate. All Guidance statements are labeled, and the text appears in

italic type. The verb “should” is typically used.

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Section 1A.13 – Meanings of text headings

Option — statement of practice that is a permissive condition and carries no requirement or recommendation. Option statements sometime contain allowable modifications

to a Standard or Guidance statement.

All Option statements are labeled, and the text appears in unbold type.

The verb “may” is typically used.

Support —informational statement that does not convey any degree of mandate, recommendation, authorization, prohibition, or enforceable condition. Support statements are labeled, and the text appears in

unbold type.

Cambios a la Parte 6 del MUTCD Asociado a Zonas de Trabajo en Carreteras

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Merging taper, L

C

B

A

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Advanced Warning Area Sign Spacing 16

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Portable Signs 18

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Taper Types

Merging

Shifting

Shoulder

Downstream

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Guidance on lengths of short tapers and downstream tapers

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Taper Length Criteria

The maximum distance in meters (feet) between devices in a taper should not exceed 0.2 times the speed limit in km/h (1.0 times the speed limit in mph).

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Formulas to Determine Taper Lengths 22

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6D.03 - High-visibility safety apparel

Required for all workers within the public right of way

Applies to all roads, not just those on the Federal-aid system

Option for law enforcement and first responders to use new ANSI “public safety vests”

Firefighters and law enforcement are exempted from the requirement under certain conditions

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Vestimenta de Seguridad

Standard - En actividades diurnas y nocturnas se tiene que usar vestimenta Clase 2 ANSI 107-1999

Material externo: anaranjado/rojo o amarillo/verde fluorescente

Material reflectivo: anaranjado, amarillo, blanco, plateado, amarillo/verde o versión fluorescente

Visible a distancia mínima de 1,000 ft (300 m)

Identifica al usuario de la vestimenta como persona

Guidance – En actividades nocturnas se debe considerar usar vestimenta Clase 3 ANSI 107-1999

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Performance Class 2 25

Performance Class 3 26

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6E.07 - Flaggers shall use a paddle, flag, or AFAD, not just hand signals

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Paddles should be placed on a rigid staff, high enough to be seen by approaching or stopped traffic

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Flagger warning signs may remain displayed for up to 15 minutes when flagging operations are not occurring, only under certain conditions

Note: The buffer space should beextended so that the two-waytraffic taper is placed beforea horizontal (or crest vertical)curve to provide adequatesight distance for theflagger and a queue ofstopped vehicles.

15 to 30 m(50 to 100 ft)

(optional)A

B

C

(optional)

One Lane Two-Way Traffic Taper15 to 30 m (50 to 100 ft)

A

B

C

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Two flaggers should be used for a one-lane, 2-way constriction unless TTC zone is short enough for the flagger to see from one end to the other

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6E.04 - Automated flagger assistance device (AFAD) Type 1: STOP/SLOW paddle AFAD

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AFAD STOP/SLOW paddle type

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Type 2: Red/yellow lens AFAD

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Red/yellow lens AFAD

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Clarified OPTION for self-regulating traffic movement through a one-lane, 2-way constriction

- If work space is short (adequate sight distance)

- If on a low-volume street

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New optional and recommended signs and plaques to accompany Speed Limit signs in TTC zones

R2-6aP

G20-5aP

R2-1

R2-10 R2-11

R2-12

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Center Lane Closed Ahead symbol sign has been removed from the MUTCD

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New sign to warn road users of a change in the traffic pattern

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New symbol sign and supplemental plaque for shoulder drop-off

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Portable Changeable Message Signs – new provisions

Number of phases

Display times per phase

Number of lines of text

Placement of messages within each line

Techniques for message display

Interaction between PCMSs if more than one sign simultaneously visible

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Section 6F.61 Arrow Boards

New alternating diamond display to indicate caution on an arrow board

Operating Mode

I. At least one of the three following modesshall be provided:

Flashing Arrow

Sequential Arrow

Sequential Chevron

II. The following mode shall be provided:Flashing Double Arrow

III. At least one of the following modesshall be provided: Flashing Cautionor Alternating Diamond Caution

Panel Display (Type C panel illustrated)

(Right arrow shown; left is similar)

Merge Right

Merge Right

Merge Right

Merge Right or Left

Alternating Diamond CautionFlashing Caution Flashing Caution

or or

PanelType

Minimum Size Minimum LegibilityDistance

Minimum Numberof Elements

A 1200 x 600 mm (48 x 24 in) 0.8 km (1/2 mi) 12

B 1500 x 750 mm (60 x 30 in) 1.2 km (3/4 mi) 13

C 2400 x 1200 mm (96 x 48 in) 1.6 km (1 mi) 15

D None* 0.8 km (1/2 mi) 12

*Length of arrow equals 1200 mm (48 in), width of arr owhead equals 600 mm (24 in)

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Temporary lane separators and temporary raised islands

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6F.78 - Temporary Markings

Delineate path through the TTC zone when the permanent markings are either removed or obliterated during the work activities.

Should not be left in place longer than 14 days

Some allowable exceptions to normal longitudinal markings requirements

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Black and orange are acceptable colors for transverse rumble strips in TTC zones

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TTC plan should be developed for planned special events that will impact traffic

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TA 4 – stationary signs may be omitted for mobile work if the work vehicle displays high-intensity strobe lights

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TA 16 – lanes should be at least 10 feet wide

TAs with freeway lane closures

TAs 37, 38, 39, 42, and 44

Arrow board shall be used for all freeway lane closures

Separate arrow board shall be used for each closed lane for multi-lane closures

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Provisions for Traffic Incident Management

A reference is made to the Incident Command System (ICS)

All on-scene responders and news media personnel should wear high-visibility apparel

Light sticks may be used in lieu of flares

RETROREFLECTIVIDAD DE ROTULOS EN ZONAS DE TRABAJO DE CARRETERAS

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2A.07 - Nuevos Requisitos Mínimos de Retroreflectividad MUTCD

Rótulos de regulación, advertencia y guía tienen que ser retroreflectivos o estar iluminados para mostrar la misma figura y color tanto de día como de noche.

Los requisitos de iluminación no se satisfacen con la iluminación de la carretera.

Elementos de Fotometría

Angulo de observación – ángulo entre fuente de luz y observador

Angulo de entrada – ángulo entre luz y perpendicular a la superficie

Blanco

Fuente

Receptor

Intensidad Luminosa Luminancia Iluminancia

Fuente: Workshop on Nighttime Visibility of Traffic Signs, FHWA y TTI

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Terminología de Fotometría (Óptica)

Término de Fotometría (condición)

Concepto Unidades de medición

Intensidad Luminosa

(fuente de luz) Candela (cd)

Iluminancia

(luz sobre el blanco) Lux (lx)

Luminancia

(luz regresando de una superficie)

cd / m2

Materiales Retroreflectivos (ASTM D4956-04)

Engineering grade ASTM Type I

Super engineering grade ASTM Type II

High intensity ASTM Type III

Microprismatic ASTM Types IV, VII, VIII, IX

Roll-up ASTM Type VI

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2A.03 Nuevos Requisitos Mínimos de Retroreflectividad MUTCD

Fechas Importantes

Fecha de efectividad de regla: 22 de enero de 2008

Fechas de cumplimiento: Para enero 2012 las agencias tendrán establecido e

implantado un sistema de gerencia o avalúo de rótulos para mantener la retroreflectividad minima de los rótulos

En enero 2015 entra en vigor la regla para rótulos de regulación, advertencia y de guía montados en la superficie de la carretera

En enero 2018 entra en vigor la regla para rótulos de nombres de calles y para rótulos montados sobre la carretera (overhead signs)

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2A.08 - Mantenimiento de la Retroreflectividad de Rótulos

Agencias públicas o oficiales con jurisdicción tienen que establecer un método de gerencia o avalúo de los rótulos diseñado para la evaluación de la retroreflectividad basados en los niveles mínimos de Tabla 2A-3 MUTCD

Establecer itinerario de mantenimiento Posición correcta Limpieza Legibilidad Visibilidad diurna y nocturna (retroreflectividad)

Vegetación y equipo y materiales de construcción, mantenimiento y utilidades no bloqueen cara de un rotulo.

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