Thursdays: Traffic Engineering Terms

Thursdays of the week is the time to enrich your knowledge in traffic engineering. The following definitions of traffic engineering terms were taken from Dr. Ricardo Sigua in his book Fundamentals of Traffic Engineering, as such, they are quoted below.

"AADT – annual average daily traffic; it is estimated as the total volume counted over one year divided by the number of days in the year.

ADT – average daily traffic; obtained by averaging traffic volume over a number of days at least 2 days and less than 365 days.

Blackspots – hazardous or accident-prone locations.

Broken back curve – a curve characterized by a short tangent between two subcurves in the same direction.

Capacity – the maximum hourly rate at which persons or vehicles can reasonably be expected to traverse a point or uniform section of a lane or roadway during a given time period under prevailing roadway, traffic, and control conditions."

Other terms will be posted next week. So, wait and learn more!

Jr./Traffic Engineer or Jr./Transport Planner at Parsons Brinckerhoff Philippines, Inc.

Parsons Brinckerhoff Philippines, Inc. is in urgent need of Traffic Engineer/Transport Planner or Jr. Traffic Engineer/Jr. Transport Planner.

Traffic Engineer / Transport Planner Qualifications: • Graduate of BS Civil Engineering or BS Architecture • Knows basic transportation engineering • 2-5 years experience in urban planning or related field such as economics and environmental planning • Computer literate • With comprehensive knowledge on CAD • Has excellent communication skills • Can start immediately Interested applicants may send their updated and comprehensive resume either by mail, fax or e-mail to the address below: Human Resource Department Parsons Brinckerhoff Philippines, Inc. 19F OMM-Citra Building, 39 San Miguel Avenue Ortigas Center, Pasig City 1605 Telephone No.: 687-1061 to 64 Fax No.: 687-4183 Website: www.pbworld.com E-mail: xxxxxx.xxxxxxx@xxxxxxx.xxx Date: 21 January 2011 City/Town: Ortigas Center, Pasig City Location: Manila Wage/Salary: Negotiable Start: Immediately Duration: Performance contract Type: Full Time How to apply: Interested applicants may send their updated and comprehensive resume at xxxxxx.xxxxxxx@xxxxxxx.xxx. You may also drop by our office at the address indicated in this ad Company: Parsons Brinckerhoff Philippines, Inc. Contact: Diohson Cenita Phone: 687-1061 Fax: 687-2778 Email: Jr. Traffic Engineer / Jr. Transport Planner Qualifications: • Graduate of BS Civil Engineering or BS Architecture • Computer literate • With knowledge on Basic CAD • Has good communication skills and capable of writing reports • Willing to be trained and can work in teams • 0-2 years experience required • Professionals with experience in related fields such as economics and environmental planning may also apply • Can start immediately Fresh graduates are encouraged to apply. Interested applicants may send their updated and comprehensive resume either by mail, fax or e-mail to the address below: Human Resource Department Parsons Brinckerhoff Philippines, Inc. 19F OMM-Citra Building, 39 San Miguel Avenue Ortigas Center, Pasig City 1605 Telephone No.: 687-1061 to 64 Fax No.: 687-4183 Website: www.pbworld.com E-mail: xxxxxx.xxxxxxx@xxxxxxx.xxx Date: 21 January 2011 City/Town: Ortigas Center, Pasig City Location: Manila Wage/Salary: Negotiable Start: Immediately Duration: Performance contract Type: Full Time How to apply: Interested applicants may send their updated and comprehensive resume at xxxxxx.xxxxxxx@xxxxxxx.xxx. You may also drop by our office at the address indicated in this ad. Company: Parsons Brinckerhoff Philippines, Inc. Contact: Diohson Cenita Phone: 687-1061 Fax: 687-2778 Email:

SLEX Toll Rates at Nichols Gate (01/23/2011)

Yesterday, we happen to pass the South Luzon EXpressway (SLEX) since we came all the way from Caliraya Resort in Lumban, Laguna. SLEX have improved a lot since last year or during the rehabilitation phase of some road sections where it brought about heavy traffic. It was quite a relief to experience better road travel along this highway.

In line with the improvements, however, the toll rates have dramatically increased. Last year's toll rates can be seen in my previous post. The updated toll rates at Nichols gate is shown below.

Entry Point | Class 1 | Class 2 | Class 3 |

Bicutan | 30 | 60 | 90 |

Sucat | 48 | 96 | 144 |

Alabang | 65 | 130 | 195 |

Filinvest | 65 | 130 | 195 |

Susana Hts. | 78 | 155 | 233 |

San Pedro | 82 | 164 | 246 |

Southwoods | 92 | 185 | 277 |

Carmona | 97 | 193 | 290 |

Greenfield City - Unilab | 104 | 207 | 311 |

Sta. Rosa | 110 | 220 | 330 |

ETON City-Greenfield City | 119 | 238 | 357 |

Cabuyao | 125 | 249 | 374 |

Silangan | 128 | 257 | 385 |

Calamba | 141 | 282 | 423 |

Macababbad and Regidor. GPS-Based Travel Time and Delay Survey Methodology and Traffic Data Analysis.

R.J.R. Macababbad and J.R. Regidor. GPS-Based Travel Time and Delay Survey Methodology and Traffic Data Analysis. Proceedings of the 5th ERDT Conference, Manila, Philippines, 10 Sept 2010.

Abstract taken directly from texts and as such, quoted below:

"Travel time and delay studies are used to evaluate traffic conditions, determine levels of service and to plan for improvements. Transportation planners and engineers of the Metro Manila Development Authority (MMDA) still employ the manual or stop watch method using a test car in obtaining travel time and delay data. This method is labor intensive and is prone to human errors as well as biases inherent in the conduct of the field surveys. Thus, it is necessary to develop and demonstrate a more efficient method using tools for assessment of road traffic conditions. This paper presents a Geographical Positioning System (GPS)-based travel time and delay survey and data analysis methodology. It presents the development and application of a methodological framework and also data analysis and presentation through the use of digital maps. The use of GPS in this research provides fundamental inputs towards the development of a probe car system for use in travel time and delay studies in the Philippine cities."